From: Jasmin Jessich <jasmin@xxxxxx>
Used a helper variable "struct dvb_ca_slot *sl" instead of
"ca->slot_info[slot]". This reduces the line length and simplifies
code reading.
Fixed also "-strict" checks in this patch:
- Comparison to NULL written as "!<var>".
Signed-off-by: Jasmin Jessich <jasmin@xxxxxx>
---
drivers/media/dvb-core/dvb_ca_en50221.c | 187 ++++++++++++++++++--------------
1 file changed, 106 insertions(+), 81 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index d06cdc7..7207ff5 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -234,13 +234,14 @@ static char *findstr(char *haystack, int hlen, char *needle, int nlen)
*/
static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private *ca, int slot)
{
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int slot_status;
int cam_present_now;
int cam_changed;
/* IRQ mode */
if (ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE) {
- return (atomic_read(&ca->slot_info[slot].camchange_count) != 0);
+ return (atomic_read(&sl->camchange_count) != 0);
}
/* poll mode */
@@ -249,22 +250,23 @@ static int dvb_ca_en50221_check_camstatus(struct dvb_ca_private *ca, int slot)
cam_present_now = (slot_status & DVB_CA_EN50221_POLL_CAM_PRESENT) ? 1 : 0;
cam_changed = (slot_status & DVB_CA_EN50221_POLL_CAM_CHANGED) ? 1 : 0;
if (!cam_changed) {
- int cam_present_old = (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE);
+ int cam_present_old = (sl->slot_state != DVB_CA_SLOTSTATE_NONE);
+
cam_changed = (cam_present_now != cam_present_old);
}
if (cam_changed) {
if (!cam_present_now) {
- ca->slot_info[slot].camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED;
+ sl->camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED;
} else {
- ca->slot_info[slot].camchange_type = DVB_CA_EN50221_CAMCHANGE_INSERTED;
+ sl->camchange_type = DVB_CA_EN50221_CAMCHANGE_INSERTED;
}
- atomic_set(&ca->slot_info[slot].camchange_count, 1);
+ atomic_set(&sl->camchange_count, 1);
} else {
- if ((ca->slot_info[slot].slot_state == DVB_CA_SLOTSTATE_WAITREADY) &&
+ if ((sl->slot_state == DVB_CA_SLOTSTATE_WAITREADY) &&
(slot_status & DVB_CA_EN50221_POLL_CAM_READY)) {
// move to validate state if reset is completed
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_VALIDATE;
+ sl->slot_state = DVB_CA_SLOTSTATE_VALIDATE;
}
}
@@ -333,6 +335,7 @@ static int dvb_ca_en50221_wait_if_status(struct dvb_ca_private *ca, int slot,
*/
static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot)
{
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int ret;
int buf_size;
u8 buf[2];
@@ -340,13 +343,13 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot)
dprintk("%s\n", __func__);
/* we'll be determining these during this function */
- ca->slot_info[slot].da_irq_supported = 0;
+ sl->da_irq_supported = 0;
/*
* set the host link buffer size temporarily. it will be overwritten
* with the real negotiated size later.
*/
- ca->slot_info[slot].link_buf_size = 2;
+ sl->link_buf_size = 2;
/* read the buffer size from the CAM */
ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND,
@@ -367,7 +370,7 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot)
buf_size = (buf[0] << 8) | buf[1];
if (buf_size > HOST_LINK_BUF_SIZE)
buf_size = HOST_LINK_BUF_SIZE;
- ca->slot_info[slot].link_buf_size = buf_size;
+ sl->link_buf_size = buf_size;
buf[0] = buf_size >> 8;
buf[1] = buf_size & 0xff;
dprintk("Chosen link buffer size of %i\n", buf_size);
@@ -459,6 +462,7 @@ static int dvb_ca_en50221_read_tuple(struct dvb_ca_private *ca, int slot,
*/
static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
{
+ struct dvb_ca_slot *sl;
int address = 0;
int tuple_length;
int tuple_type;
@@ -531,10 +535,10 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
rasz = tuple[0] & 3;
if (tuple_length < (3 + rasz + 14))
return -EINVAL;
- ca->slot_info[slot].config_base = 0;
- for (i = 0; i < rasz + 1; i++) {
- ca->slot_info[slot].config_base |= (tuple[2 + i] << (8 * i));
- }
+ sl = &ca->slot_info[slot];
+ sl->config_base = 0;
+ for (i = 0; i < rasz + 1; i++)
+ sl->config_base |= (tuple[2 + i] << (8 * i));
/* check it contains the correct DVB string */
dvb_str = findstr((char *)tuple, tuple_length, "DVB_CI_V", 8);
@@ -568,7 +572,7 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
break;
/* get the config option */
- ca->slot_info[slot].config_option = tuple[0] & 0x3f;
+ sl->config_option = tuple[0] & 0x3f;
/* OK, check it contains the correct strings */
if (!findstr((char *)tuple, tuple_length,
@@ -598,8 +602,7 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
return -EINVAL;
dprintk("Valid DVB CAM detected MANID:%x DEVID:%x CONFIGBASE:0x%x CONFIGOPTION:0x%x\n",
- manfid, devid, ca->slot_info[slot].config_base,
- ca->slot_info[slot].config_option);
+ manfid, devid, sl->config_base, sl->config_option);
// success!
return 0;
@@ -614,19 +617,20 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot)
*/
static int dvb_ca_en50221_set_configoption(struct dvb_ca_private *ca, int slot)
{
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int configoption;
dprintk("%s\n", __func__);
/* set the config option */
- ca->pub->write_attribute_mem(ca->pub, slot,
- ca->slot_info[slot].config_base,
- ca->slot_info[slot].config_option);
+ ca->pub->write_attribute_mem(ca->pub, slot, sl->config_base,
+ sl->config_option);
/* check it */
- configoption = ca->pub->read_attribute_mem(ca->pub, slot, ca->slot_info[slot].config_base);
+ configoption = ca->pub->read_attribute_mem(ca->pub, slot,
+ sl->config_base);
dprintk("Set configoption 0x%x, read configoption 0x%x\n",
- ca->slot_info[slot].config_option, configoption & 0x3f);
+ sl->config_option, configoption & 0x3f);
/* fine! */
return 0;
@@ -651,6 +655,7 @@ static int dvb_ca_en50221_set_configoption(struct dvb_ca_private *ca, int slot)
static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
u8 *ebuf, int ecount)
{
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int bytes_read;
int status;
u8 buf[HOST_LINK_BUF_SIZE];
@@ -662,13 +667,13 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
if (ebuf == NULL) {
int buf_free;
- if (ca->slot_info[slot].rx_buffer.data == NULL) {
+ if (!sl->rx_buffer.data) {
status = -EIO;
goto exit;
}
- buf_free = dvb_ringbuffer_free(&ca->slot_info[slot].rx_buffer);
+ buf_free = dvb_ringbuffer_free(&sl->rx_buffer);
- if (buf_free < (ca->slot_info[slot].link_buf_size +
+ if (buf_free < (sl->link_buf_size +
DVB_RINGBUFFER_PKTHDRSIZE)) {
status = -EAGAIN;
goto exit;
@@ -676,7 +681,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
}
if (ca->pub->read_data &&
- (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_LINKINIT)) {
+ (sl->slot_state != DVB_CA_SLOTSTATE_LINKINIT)) {
if (ebuf == NULL)
status = ca->pub->read_data(ca->pub, slot, buf,
sizeof(buf));
@@ -714,20 +719,18 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
/* check it will fit */
if (ebuf == NULL) {
- if (bytes_read > ca->slot_info[slot].link_buf_size) {
+ if (bytes_read > sl->link_buf_size) {
pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size (%i > %i)!\n",
ca->dvbdev->adapter->num, bytes_read,
- ca->slot_info[slot].link_buf_size);
- ca->slot_info[slot].slot_state =
- DVB_CA_SLOTSTATE_LINKINIT;
+ sl->link_buf_size);
+ sl->slot_state = DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
goto exit;
}
if (bytes_read < 2) {
pr_err("dvb_ca adapter %d: CAM sent a buffer that was less than 2 bytes!\n",
ca->dvbdev->adapter->num);
- ca->slot_info[slot].slot_state =
- DVB_CA_SLOTSTATE_LINKINIT;
+ sl->slot_state = DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
goto exit;
}
@@ -758,8 +761,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
if (status < 0)
goto exit;
if (status & STATUSREG_RE) {
- ca->slot_info[slot].slot_state =
- DVB_CA_SLOTSTATE_LINKINIT;
+ sl->slot_state = DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
goto exit;
}
@@ -767,11 +769,11 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
/* OK, add it to the receive buffer, or copy into external buffer if supplied */
if (ebuf == NULL) {
- if (ca->slot_info[slot].rx_buffer.data == NULL) {
+ if (!sl->rx_buffer.data) {
status = -EIO;
goto exit;
}
- dvb_ringbuffer_pkt_write(&ca->slot_info[slot].rx_buffer, buf, bytes_read);
+ dvb_ringbuffer_pkt_write(&sl->rx_buffer, buf, bytes_read);
} else {
memcpy(ebuf, buf, bytes_read);
}
@@ -805,6 +807,7 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
u8 *buf, int bytes_write)
{
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int status;
int i;
@@ -812,11 +815,11 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
/* sanity check */
- if (bytes_write > ca->slot_info[slot].link_buf_size)
+ if (bytes_write > sl->link_buf_size)
return -EINVAL;
if (ca->pub->write_data &&
- (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_LINKINIT))
+ (sl->slot_state != DVB_CA_SLOTSTATE_LINKINIT))
return ca->pub->write_data(ca->pub, slot, buf, bytes_write);
/*
@@ -898,7 +901,7 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
if (status < 0)
goto exit;
if (status & STATUSREG_WE) {
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
+ sl->slot_state = DVB_CA_SLOTSTATE_LINKINIT;
status = -EIO;
goto exit;
}
@@ -956,6 +959,7 @@ static int dvb_ca_en50221_slot_shutdown(struct dvb_ca_private *ca, int slot)
void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221 *pubca, int slot, int change_type)
{
struct dvb_ca_private *ca = pubca->private;
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
dprintk("CAMCHANGE IRQ slot:%i change_type:%i\n", slot, change_type);
@@ -968,8 +972,8 @@ void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221 *pubca, int slot, int ch
return;
}
- ca->slot_info[slot].camchange_type = change_type;
- atomic_inc(&ca->slot_info[slot].camchange_count);
+ sl->camchange_type = change_type;
+ atomic_inc(&sl->camchange_count);
dvb_ca_en50221_thread_wakeup(ca);
}
EXPORT_SYMBOL(dvb_ca_en50221_camchange_irq);
@@ -984,11 +988,12 @@ EXPORT_SYMBOL(dvb_ca_en50221_camchange_irq);
void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot)
{
struct dvb_ca_private *ca = pubca->private;
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
dprintk("CAMREADY IRQ slot:%i\n", slot);
- if (ca->slot_info[slot].slot_state == DVB_CA_SLOTSTATE_WAITREADY) {
- ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_VALIDATE;
+ if (sl->slot_state == DVB_CA_SLOTSTATE_WAITREADY) {
+ sl->slot_state = DVB_CA_SLOTSTATE_VALIDATE;
dvb_ca_en50221_thread_wakeup(ca);
}
}
@@ -1004,16 +1009,17 @@ EXPORT_SYMBOL(dvb_ca_en50221_camready_irq);
void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *pubca, int slot)
{
struct dvb_ca_private *ca = pubca->private;
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
int flags;
dprintk("FR/DA IRQ slot:%i\n", slot);
- switch (ca->slot_info[slot].slot_state) {
+ switch (sl->slot_state) {
case DVB_CA_SLOTSTATE_LINKINIT:
flags = ca->pub->read_cam_control(pubca, slot, CTRLIF_STATUS);
if (flags & STATUSREG_DA) {
dprintk("CAM supports DA IRQ\n");
- ca->slot_info[slot].da_irq_supported = 1;
+ sl->da_irq_supported = 1;
}
break;
@@ -1059,7 +1065,9 @@ static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private *ca)
* call might take several hundred milliseconds until timeout!
*/
for (slot = 0; slot < ca->slot_count; slot++) {
- switch (ca->slot_info[slot].slot_state) {
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
+
+ switch (sl->slot_state) {
default:
case DVB_CA_SLOTSTATE_NONE:
delay = HZ * 60; /* 60s */
@@ -1085,7 +1093,7 @@ static void dvb_ca_en50221_thread_update_delay(struct dvb_ca_private *ca)
if (!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE))
delay = HZ / 10; /* 100ms */
if (ca->open) {
- if ((!ca->slot_info[slot].da_irq_supported) ||
+ if ((!sl->da_irq_supported) ||
(!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_DA)))
delay = HZ / 10; /* 100ms */
}
@@ -1374,15 +1382,17 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
switch (cmd) {
case CA_RESET:
for (slot = 0; slot < ca->slot_count; slot++) {
- mutex_lock(&ca->slot_info[slot].slot_lock);
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_NONE) {
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
+
+ mutex_lock(&sl->slot_lock);
+ if (sl->slot_state != DVB_CA_SLOTSTATE_NONE) {
dvb_ca_en50221_slot_shutdown(ca, slot);
if (ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)
dvb_ca_en50221_camchange_irq(ca->pub,
slot,
DVB_CA_EN50221_CAMCHANGE_INSERTED);
}
- mutex_unlock(&ca->slot_info[slot].slot_lock);
+ mutex_unlock(&sl->slot_lock);
}
ca->next_read_slot = 0;
dvb_ca_en50221_thread_wakeup(ca);
@@ -1400,21 +1410,23 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
case CA_GET_SLOT_INFO: {
struct ca_slot_info *info = parg;
+ struct dvb_ca_slot *sl;
- if ((info->num > ca->slot_count) || (info->num < 0)) {
+ slot = info->num;
+ if ((slot > ca->slot_count) || (slot < 0)) {
err = -EINVAL;
goto out_unlock;
}
info->type = CA_CI_LINK;
info->flags = 0;
- if ((ca->slot_info[info->num].slot_state != DVB_CA_SLOTSTATE_NONE)
- && (ca->slot_info[info->num].slot_state != DVB_CA_SLOTSTATE_INVALID)) {
+ sl = &ca->slot_info[slot];
+ if ((sl->slot_state != DVB_CA_SLOTSTATE_NONE) &&
+ (sl->slot_state != DVB_CA_SLOTSTATE_INVALID)) {
info->flags = CA_CI_MODULE_PRESENT;
}
- if (ca->slot_info[info->num].slot_state == DVB_CA_SLOTSTATE_RUNNING) {
+ if (sl->slot_state == DVB_CA_SLOTSTATE_RUNNING)
info->flags |= CA_CI_MODULE_READY;
- }
break;
}
@@ -1462,6 +1474,7 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file,
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_ca_private *ca = dvbdev->priv;
+ struct dvb_ca_slot *sl;
u8 slot, connection_id;
int status;
u8 fragbuf[HOST_LINK_BUF_SIZE];
@@ -1483,14 +1496,15 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file,
return -EFAULT;
buf += 2;
count -= 2;
+ sl = &ca->slot_info[slot];
/* check if the slot is actually running */
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING)
+ if (sl->slot_state != DVB_CA_SLOTSTATE_RUNNING)
return -EINVAL;
/* fragment the packets & store in the buffer */
while (fragpos < count) {
- fraglen = ca->slot_info[slot].link_buf_size - 2;
+ fraglen = sl->link_buf_size - 2;
if (fraglen < 0)
break;
if (fraglen > HOST_LINK_BUF_SIZE - 2)
@@ -1510,14 +1524,14 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file,
written = 0;
while (!time_after(jiffies, timeout)) {
/* check the CAM hasn't been removed/reset in the meantime */
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING) {
+ if (sl->slot_state != DVB_CA_SLOTSTATE_RUNNING) {
status = -EIO;
goto exit;
}
- mutex_lock(&ca->slot_info[slot].slot_lock);
+ mutex_lock(&sl->slot_lock);
status = dvb_ca_en50221_write_data(ca, slot, fragbuf, fraglen + 2);
- mutex_unlock(&ca->slot_info[slot].slot_lock);
+ mutex_unlock(&sl->slot_lock);
if (status == (fraglen + 2)) {
written = 1;
break;
@@ -1557,16 +1571,17 @@ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca,
slot = ca->next_read_slot;
while ((slot_count < ca->slot_count) && (!found)) {
- if (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_RUNNING)
+ struct dvb_ca_slot *sl = &ca->slot_info[slot];
+
+ if (sl->slot_state != DVB_CA_SLOTSTATE_RUNNING)
goto nextslot;
- if (ca->slot_info[slot].rx_buffer.data == NULL) {
+ if (!sl->rx_buffer.data)
return 0;
- }
- idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, -1, &fraglen);
+ idx = dvb_ringbuffer_pkt_next(&sl->rx_buffer, -1, &fraglen);
while (idx != -1) {
- dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2);
+ dvb_ringbuffer_pkt_read(&sl->rx_buffer, idx, 0, hdr, 2);
if (connection_id == -1)
connection_id = hdr[0];
if ((hdr[0] == connection_id) && ((hdr[1] & 0x80) == 0)) {
@@ -1575,7 +1590,8 @@ static int dvb_ca_en50221_io_read_condition(struct dvb_ca_private *ca,
break;
}
- idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, idx, &fraglen);
+ idx = dvb_ringbuffer_pkt_next(&sl->rx_buffer, idx,
+ &fraglen);
}
nextslot:
@@ -1603,6 +1619,7 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
{
struct dvb_device *dvbdev = file->private_data;
struct dvb_ca_private *ca = dvbdev->priv;
+ struct dvb_ca_slot *sl;
int status;
int result = 0;
u8 hdr[2];
@@ -1639,7 +1656,8 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
return status;
}
- idx = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, -1, &fraglen);
+ sl = &ca->slot_info[slot];
+ idx = dvb_ringbuffer_pkt_next(&sl->rx_buffer, -1, &fraglen);
pktlen = 2;
do {
if (idx == -1) {
@@ -1649,7 +1667,7 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
goto exit;
}
- dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 0, hdr, 2);
+ dvb_ringbuffer_pkt_read(&sl->rx_buffer, idx, 0, hdr, 2);
if (connection_id == -1)
connection_id = hdr[0];
if (hdr[0] == connection_id) {
@@ -1660,10 +1678,14 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
fraglen -= 2;
}
- if ((status = dvb_ringbuffer_pkt_read_user(&ca->slot_info[slot].rx_buffer, idx, 2,
- buf + pktlen, fraglen)) < 0) {
+ status =
+ dvb_ringbuffer_pkt_read_user(&sl->rx_buffer,
+ idx, 2,
+ buf + pktlen,
+ fraglen);
+ if (status < 0)
goto exit;
- }
+
pktlen += fraglen;
}
@@ -1672,9 +1694,9 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user *buf,
dispose = 1;
}
- idx2 = dvb_ringbuffer_pkt_next(&ca->slot_info[slot].rx_buffer, idx, &fraglen);
+ idx2 = dvb_ringbuffer_pkt_next(&sl->rx_buffer, idx, &fraglen);
if (dispose)
- dvb_ringbuffer_pkt_dispose(&ca->slot_info[slot].rx_buffer, idx);
+ dvb_ringbuffer_pkt_dispose(&sl->rx_buffer, idx);
idx = idx2;
dispose = 0;
} while (!last_fragment);
@@ -1720,15 +1742,16 @@ static int dvb_ca_en50221_io_open(struct inode *inode, struct file *file)
}
for (i = 0; i < ca->slot_count; i++) {
+ struct dvb_ca_slot *sl = &ca->slot_info[i];
- if (ca->slot_info[i].slot_state == DVB_CA_SLOTSTATE_RUNNING) {
- if (ca->slot_info[i].rx_buffer.data != NULL) {
+ if (sl->slot_state == DVB_CA_SLOTSTATE_RUNNING) {
+ if (!sl->rx_buffer.data) {
/*
* it is safe to call this here without locks
* because ca->open == 0. Data is not read in
* this case
*/
- dvb_ringbuffer_flush(&ca->slot_info[i].rx_buffer);
+ dvb_ringbuffer_flush(&sl->rx_buffer);
}
}
}
@@ -1888,11 +1911,13 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
/* now initialise each slot */
for (i = 0; i < slot_count; i++) {
- memset(&ca->slot_info[i], 0, sizeof(struct dvb_ca_slot));
- ca->slot_info[i].slot_state = DVB_CA_SLOTSTATE_NONE;
- atomic_set(&ca->slot_info[i].camchange_count, 0);
- ca->slot_info[i].camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED;
- mutex_init(&ca->slot_info[i].slot_lock);
+ struct dvb_ca_slot *sl = &ca->slot_info[i];
+
+ memset(sl, 0, sizeof(struct dvb_ca_slot));
+ sl->slot_state = DVB_CA_SLOTSTATE_NONE;
+ atomic_set(&sl->camchange_count, 0);
+ sl->camchange_type = DVB_CA_EN50221_CAMCHANGE_REMOVED;
+ mutex_init(&sl->slot_lock);
}
mutex_init(&ca->ioctl_mutex);
--
2.7.4
