On Fri, 2011-05-06 at 18:50 +0100, Bastien Nocera wrote:
> On Fri, 2011-05-06 at 20:43 +0300, Luiz Augusto von Dentz wrote:
> > Hi,
> >
> > On Fri, May 6, 2011 at 5:48 PM, Bastien Nocera <hadess@xxxxxxxxxx> wrote:
> > >> @@ -250,7 +250,7 @@ static int decode_key(const char *str)
> > >> static void send_event(int fd, uint16_t type, uint16_t code, int32_t value)
> > >> {
> > >> struct uinput_event event;
> > >> - int err;
> > >> + int __attribute__((__unused__)) err;
> > >>
> > >> memset(&event, 0, sizeof(event));
> > >> event.type = type;
> > >>
> > >> Can't we just removed err here, Im afraid using
> > >> __attribute__((__unused__)) is not a good practice and we should try
> > >> to avoid using it.
> > >
> > > We either get a warning that the return value is unused, or that we
> > > should be checking the return value. Which one do you prefer?
> >
> > I guess I would prefer checking the return properly if you don't mind.
>
> Done.
>
> > Also like Gustavo mentioned, it would be great to have the gdbus
> > changes in a separate patch so we can apply to other project which
> > uses it.
>
> Done.
And without the now unnecessary changes to btio/btio.c (flushable
problem is already fixed).
>From 4fa5b05d184d355ee1cb7ebc7abf88f51ec53a59 Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@xxxxxxxxxx>
Date: Fri, 6 May 2011 18:49:26 +0100
Subject: [PATCH] Fix "set but not unused variable" GCC 4.6 warnings
---
attrib/gatt.c | 4 ----
audio/a2dp.c | 3 ---
audio/manager.c | 2 --
audio/pcm_bluetooth.c | 4 ++--
btio/btio.c | 4 ++++
compat/fakehid.c | 6 ++++--
cups/hcrp.c | 12 ++++++++++++
input/device.c | 4 ++--
input/server.c | 3 ++-
lib/sdp.c | 2 +-
network/common.c | 2 +-
plugins/hciops.c | 4 +---
plugins/mgmtops.c | 4 +---
sbc/sbcinfo.c | 2 +-
src/adapter.c | 6 ------
src/sdp-xml.c | 4 ----
src/sdpd-request.c | 2 +-
src/textfile.c | 8 ++++++++
test/hciemu.c | 6 ++++++
test/hstest.c | 7 ++++++-
test/rctest.c | 2 --
test/scotest.c | 2 --
test/test-textfile.c | 2 ++
tools/hciattach.c | 6 +++---
tools/hcitool.c | 2 --
25 files changed, 57 insertions(+), 46 deletions(-)
diff --git a/attrib/gatt.c b/attrib/gatt.c
index 360218b..095b157 100644
--- a/attrib/gatt.c
+++ b/attrib/gatt.c
@@ -71,13 +71,11 @@ static guint16 encode_discover_primary(uint16_t start, uint16_t end,
{
bt_uuid_t prim;
guint16 plen;
- uint8_t op;
bt_uuid16_create(&prim, GATT_PRIM_SVC_UUID);
if (uuid == NULL) {
/* Discover all primary services */
- op = ATT_OP_READ_BY_GROUP_REQ;
plen = enc_read_by_grp_req(start, end, &prim, pdu, len);
} else {
uint16_t u16;
@@ -86,8 +84,6 @@ static guint16 encode_discover_primary(uint16_t start, uint16_t end,
int vlen;
/* Discover primary service by service UUID */
- op = ATT_OP_FIND_BY_TYPE_REQ;
-
if (uuid->type == BT_UUID16) {
u16 = htobs(uuid->value.u16);
value = &u16;
diff --git a/audio/a2dp.c b/audio/a2dp.c
index 9cd7207..52acdfa 100644
--- a/audio/a2dp.c
+++ b/audio/a2dp.c
@@ -2038,7 +2038,6 @@ unsigned int a2dp_config(struct avdtp *session, struct a2dp_sep *sep,
struct avdtp_media_codec_capability *codec_cap = NULL;
int posix_err;
bdaddr_t src;
- uint8_t remote_type;
avdtp_get_peers(session, &src, NULL);
server = find_server(servers, &src);
@@ -2085,9 +2084,7 @@ unsigned int a2dp_config(struct avdtp *session, struct a2dp_sep *sep,
case AVDTP_STATE_IDLE:
if (sep->type == AVDTP_SEP_TYPE_SOURCE) {
l = server->sources;
- remote_type = AVDTP_SEP_TYPE_SINK;
} else {
- remote_type = AVDTP_SEP_TYPE_SOURCE;
l = server->sinks;
}
diff --git a/audio/manager.c b/audio/manager.c
index 7e206be..d4ff906 100644
--- a/audio/manager.c
+++ b/audio/manager.c
@@ -562,7 +562,6 @@ static void hf_io_cb(GIOChannel *chan, gpointer data)
GError *err = NULL;
uint8_t ch;
const char *server_uuid, *remote_uuid;
- uint16_t svclass;
struct audio_device *device;
int perr;
@@ -580,7 +579,6 @@ static void hf_io_cb(GIOChannel *chan, gpointer data)
server_uuid = HFP_AG_UUID;
remote_uuid = HFP_HS_UUID;
- svclass = HANDSFREE_AGW_SVCLASS_ID;
device = manager_get_device(&src, &dst, TRUE);
if (!device)
diff --git a/audio/pcm_bluetooth.c b/audio/pcm_bluetooth.c
index 799f17f..2d9f178 100644
--- a/audio/pcm_bluetooth.c
+++ b/audio/pcm_bluetooth.c
@@ -820,7 +820,7 @@ static int bluetooth_playback_poll_revents(snd_pcm_ioplug_t *io,
unsigned short *revents)
{
static char buf[1];
- int ret;
+ int ret = 0;
DBG("");
@@ -838,7 +838,7 @@ static int bluetooth_playback_poll_revents(snd_pcm_ioplug_t *io,
*revents = (pfds[0].revents & POLLIN) ? POLLOUT : 0;
- return 0;
+ return ret;
}
diff --git a/btio/btio.c b/btio/btio.c
index a3cf38a..4d855ae 100644
--- a/btio/btio.c
+++ b/btio/btio.c
@@ -1135,6 +1135,10 @@ gboolean bt_io_accept(GIOChannel *io, BtIOConnect connect, gpointer user_data,
if (!(pfd.revents & POLLOUT)) {
int ret;
ret = read(sock, &c, 1);
+ if (ret < 0) {
+ ERROR_FAILED(err, "read", errno);
+ return FALSE;
+ }
}
accept_add(io, connect, user_data, destroy);
diff --git a/compat/fakehid.c b/compat/fakehid.c
index b996d10..0974d0a 100644
--- a/compat/fakehid.c
+++ b/compat/fakehid.c
@@ -60,13 +60,13 @@ static void sig_term(int sig)
__io_canceled = 1;
}
-static void send_event(int fd, uint16_t type, uint16_t code, int32_t value)
+static int send_event(int fd, uint16_t type, uint16_t code, int32_t value)
{
struct uinput_event event;
int len;
if (fd <= fileno(stderr))
- return;
+ return -1;
memset(&event, 0, sizeof(event));
event.type = type;
@@ -74,6 +74,8 @@ static void send_event(int fd, uint16_t type, uint16_t code, int32_t value)
event.value = value;
len = write(fd, &event, sizeof(event));
+
+ return len;
}
static int uinput_create(char *name, int keyboard, int mouse)
diff --git a/cups/hcrp.c b/cups/hcrp.c
index 7aafcdc..ad88ff6 100644
--- a/cups/hcrp.c
+++ b/cups/hcrp.c
@@ -94,8 +94,12 @@ static int hcrp_credit_grant(int sk, uint16_t tid, uint32_t credit)
memcpy(buf, &hdr, HCRP_PDU_HDR_SIZE);
memcpy(buf + HCRP_PDU_HDR_SIZE, &cp, HCRP_CREDIT_GRANT_CP_SIZE);
len = write(sk, buf, HCRP_PDU_HDR_SIZE + HCRP_CREDIT_GRANT_CP_SIZE);
+ if (len < 0)
+ return -1;
len = read(sk, buf, sizeof(buf));
+ if (len < 0)
+ return -1;
memcpy(&hdr, buf, HCRP_PDU_HDR_SIZE);
memcpy(&rp, buf + HCRP_PDU_HDR_SIZE, HCRP_CREDIT_GRANT_RP_SIZE);
@@ -119,8 +123,12 @@ static int hcrp_credit_request(int sk, uint16_t tid, uint32_t *credit)
hdr.plen = htons(0);
memcpy(buf, &hdr, HCRP_PDU_HDR_SIZE);
len = write(sk, buf, HCRP_PDU_HDR_SIZE);
+ if (len < 0)
+ return -1;
len = read(sk, buf, sizeof(buf));
+ if (len < 0)
+ return -1;
memcpy(&hdr, buf, HCRP_PDU_HDR_SIZE);
memcpy(&rp, buf + HCRP_PDU_HDR_SIZE, HCRP_CREDIT_REQUEST_RP_SIZE);
@@ -147,8 +155,12 @@ static int hcrp_get_lpt_status(int sk, uint16_t tid, uint8_t *lpt_status)
hdr.plen = htons(0);
memcpy(buf, &hdr, HCRP_PDU_HDR_SIZE);
len = write(sk, buf, HCRP_PDU_HDR_SIZE);
+ if (len < 0)
+ return -1;
len = read(sk, buf, sizeof(buf));
+ if (len < 0)
+ return -1;
memcpy(&hdr, buf, HCRP_PDU_HDR_SIZE);
memcpy(&rp, buf + HCRP_PDU_HDR_SIZE, HCRP_GET_LPT_STATUS_RP_SIZE);
diff --git a/input/device.c b/input/device.c
index 554f5ac..0bc4c9d 100644
--- a/input/device.c
+++ b/input/device.c
@@ -250,14 +250,14 @@ static int decode_key(const char *str)
static void send_event(int fd, uint16_t type, uint16_t code, int32_t value)
{
struct uinput_event event;
- int err;
memset(&event, 0, sizeof(event));
event.type = type;
event.code = code;
event.value = value;
- err = write(fd, &event, sizeof(event));
+ if (write(fd, &event, sizeof(event)) < 0)
+ error("input: send_event failed: %s", strerror(errno));
}
static void send_key(int fd, uint16_t key)
diff --git a/input/server.c b/input/server.c
index d98018b..15bf5b3 100644
--- a/input/server.c
+++ b/input/server.c
@@ -91,7 +91,8 @@ static void connect_event_cb(GIOChannel *chan, GError *err, gpointer data)
/* Send unplug virtual cable to unknown devices */
if (ret == -ENOENT && psm == L2CAP_PSM_HIDP_CTRL) {
unsigned char unplug = 0x15;
- int err, sk = g_io_channel_unix_get_fd(chan);
+ int __attribute__((__unused__)) err;
+ int sk = g_io_channel_unix_get_fd(chan);
err = write(sk, &unplug, sizeof(unplug));
}
diff --git a/lib/sdp.c b/lib/sdp.c
index d24d1e2..d852587 100644
--- a/lib/sdp.c
+++ b/lib/sdp.c
@@ -3319,7 +3319,7 @@ int sdp_service_search_req(sdp_session_t *session, const sdp_list_t *search,
uint32_t reqsize = 0, _reqsize;
uint32_t rspsize = 0, rsplen;
int seqlen = 0;
- int total_rec_count, rec_count;
+ int __attribute__((__unused__)) total_rec_count, rec_count;
unsigned scanned, pdata_len;
uint8_t *pdata, *_pdata;
uint8_t *reqbuf, *rspbuf;
diff --git a/network/common.c b/network/common.c
index ef72679..38d2c49 100644
--- a/network/common.c
+++ b/network/common.c
@@ -215,7 +215,7 @@ int bnep_if_up(const char *devname)
int bnep_if_down(const char *devname)
{
struct ifreq ifr;
- int sk, err;
+ int sk, __attribute__((__unused__)) err;
sk = socket(AF_INET, SOCK_DGRAM, 0);
diff --git a/plugins/hciops.c b/plugins/hciops.c
index 2c49e35..49dd48d 100644
--- a/plugins/hciops.c
+++ b/plugins/hciops.c
@@ -2754,7 +2754,7 @@ static void init_conn_list(int index)
struct dev_info *dev = &devs[index];
struct hci_conn_list_req *cl;
struct hci_conn_info *ci;
- int err, i;
+ int i;
DBG("hci%d", index);
@@ -2780,8 +2780,6 @@ static void init_conn_list(int index)
conn->handle = ci->handle;
}
- err = 0;
-
failed:
g_free(cl);
}
diff --git a/plugins/mgmtops.c b/plugins/mgmtops.c
index 9e1cfac..b831044 100644
--- a/plugins/mgmtops.c
+++ b/plugins/mgmtops.c
@@ -207,7 +207,7 @@ static int mgmt_update_powered(int index, uint8_t powered)
{
struct controller_info *info;
struct btd_adapter *adapter;
- gboolean pairable, discoverable;
+ gboolean pairable;
uint8_t on_mode;
if (index > max_index) {
@@ -238,8 +238,6 @@ static int mgmt_update_powered(int index, uint8_t powered)
btd_adapter_get_mode(adapter, NULL, &on_mode, &pairable);
- discoverable = (on_mode == MODE_DISCOVERABLE);
-
if (on_mode == MODE_DISCOVERABLE && !info->discoverable)
mgmt_set_discoverable(index, TRUE);
else if (on_mode == MODE_CONNECTABLE && !info->connectable)
diff --git a/sbc/sbcinfo.c b/sbc/sbcinfo.c
index 6d92679..63f05aa 100644
--- a/sbc/sbcinfo.c
+++ b/sbc/sbcinfo.c
@@ -281,7 +281,7 @@ static int analyze_file(char *filename)
printf("Subbands\t\t%d\n", subbands);
printf("Block length\t\t%d\n", blocks);
printf("Sampling frequency\t%s\n", freq2str(freq));
- printf("Channel mode\t\t%s\n", mode2str(hdr.channel_mode));
+ printf("Channel mode\t\t%s\n", mode2str(mode));
printf("Allocation method\t%s\n", method ? "SNR" : "Loudness");
printf("Bitpool\t\t\t%d", bitpool[0]);
for (n = 1; n < SIZE; n++)
diff --git a/src/adapter.c b/src/adapter.c
index f068335..76fc01b 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -476,13 +476,10 @@ static int set_mode(struct btd_adapter *adapter, uint8_t new_mode,
{
int err;
const char *modestr;
- gboolean discoverable;
if (adapter->pending_mode != NULL)
return -EALREADY;
- discoverable = new_mode == MODE_DISCOVERABLE;
-
if (!adapter->up && new_mode != MODE_OFF) {
err = adapter_ops->set_powered(adapter->dev_id, TRUE);
if (err < 0)
@@ -3405,7 +3402,6 @@ gboolean adapter_powering_down(struct btd_adapter *adapter)
int btd_adapter_restore_powered(struct btd_adapter *adapter)
{
char mode[14], address[18];
- gboolean discoverable;
if (!adapter_ops)
return -EINVAL;
@@ -3421,8 +3417,6 @@ int btd_adapter_restore_powered(struct btd_adapter *adapter)
g_str_equal(mode, "off"))
return 0;
- discoverable = get_mode(&adapter->bdaddr, mode) == MODE_DISCOVERABLE;
-
return adapter_ops->set_powered(adapter->dev_id, TRUE);
}
diff --git a/src/sdp-xml.c b/src/sdp-xml.c
index 3aa9df0..62226cc 100644
--- a/src/sdp-xml.c
+++ b/src/sdp-xml.c
@@ -47,7 +47,6 @@ static void convert_raw_data_to_xml(sdp_data_t *value, int indent_level,
int i, hex;
char buf[STRBUFSIZE];
char indent[MAXINDENT];
- char next_indent[MAXINDENT];
if (!value)
return;
@@ -57,12 +56,9 @@ static void convert_raw_data_to_xml(sdp_data_t *value, int indent_level,
for (i = 0; i < indent_level; i++) {
indent[i] = '\t';
- next_indent[i] = '\t';
}
indent[i] = '\0';
- next_indent[i] = '\t';
- next_indent[i + 1] = '\0';
buf[STRBUFSIZE - 1] = '\0';
diff --git a/src/sdpd-request.c b/src/sdpd-request.c
index 1722f78..287acc2 100644
--- a/src/sdpd-request.c
+++ b/src/sdpd-request.c
@@ -962,7 +962,7 @@ static void process_request(sdp_req_t *req)
sdp_pdu_hdr_t *rsphdr;
sdp_buf_t rsp;
uint8_t *buf = malloc(USHRT_MAX);
- int sent = 0;
+ int __attribute__((__unused__)) sent = 0;
int status = SDP_INVALID_SYNTAX;
memset(buf, 0, USHRT_MAX);
diff --git a/src/textfile.c b/src/textfile.c
index d115ff6..2645f9a 100644
--- a/src/textfile.c
+++ b/src/textfile.c
@@ -204,6 +204,10 @@ static int write_key(const char *pathname, const char *key, const char *value, i
if (!size) {
if (value) {
pos = lseek(fd, size, SEEK_SET);
+ if (pos == (off_t) -1) {
+ err = errno;
+ goto unlock;
+ }
err = write_key_value(fd, key, value);
}
goto unlock;
@@ -222,6 +226,10 @@ static int write_key(const char *pathname, const char *key, const char *value, i
if (value) {
munmap(map, size);
pos = lseek(fd, size, SEEK_SET);
+ if (pos == (off_t) -1) {
+ err = errno;
+ goto unlock;
+ }
err = write_key_value(fd, key, value);
}
goto unlock;
diff --git a/test/hciemu.c b/test/hciemu.c
index 66f99a9..27e8275 100644
--- a/test/hciemu.c
+++ b/test/hciemu.c
@@ -222,7 +222,11 @@ static int write_snoop(int fd, int type, int incoming, unsigned char *buf, int l
pkt.flags |= ntohl(0x02);
err = write(fd, &pkt, BTSNOOP_PKT_SIZE);
+ if (err < 0)
+ return -1;
err = write(fd, buf, size);
+ if (err < 0)
+ return -1;
return 0;
}
@@ -899,6 +903,8 @@ static gboolean io_acl_data(GIOChannel *chan, GIOCondition cond, gpointer data)
write_snoop(vdev.dd, HCI_ACLDATA_PKT, 1, buf, len);
err = write(vdev.fd, buf, len);
+ if (err < 0)
+ return FALSE;
return TRUE;
}
diff --git a/test/hstest.c b/test/hstest.c
index 08f2257..07124c1 100644
--- a/test/hstest.c
+++ b/test/hstest.c
@@ -244,8 +244,13 @@ int main(int argc, char *argv[])
fprintf(stderr, "SCO audio channel connected (handle %d, mtu %d)\n", sco_handle, sco_mtu);
- if (mode == RECORD)
+ if (mode == RECORD) {
err = write(rd, "RING\r\n", 6);
+ if (err < 0) {
+ perror("Can't write \"RING\"");
+ return -1;
+ }
+ }
maxfd = (rd > sd) ? rd : sd;
diff --git a/test/rctest.c b/test/rctest.c
index b3804f5..9754f52 100644
--- a/test/rctest.c
+++ b/test/rctest.c
@@ -417,13 +417,11 @@ static void recv_mode(int sk)
struct timeval tv_beg, tv_end, tv_diff;
char ts[30];
long total;
- uint32_t seq;
syslog(LOG_INFO, "Receiving ...");
memset(ts, 0, sizeof(ts));
- seq = 0;
while (1) {
gettimeofday(&tv_beg,NULL);
total = 0;
diff --git a/test/scotest.c b/test/scotest.c
index 50b622a..17bd8a6 100644
--- a/test/scotest.c
+++ b/test/scotest.c
@@ -216,11 +216,9 @@ static void recv_mode(int sk)
{
struct timeval tv_beg,tv_end,tv_diff;
long total;
- uint32_t seq;
syslog(LOG_INFO, "Receiving ...");
- seq = 0;
while (1) {
gettimeofday(&tv_beg, NULL);
total = 0;
diff --git a/test/test-textfile.c b/test/test-textfile.c
index 970e9e7..0786022 100644
--- a/test/test-textfile.c
+++ b/test/test-textfile.c
@@ -51,6 +51,8 @@ int main(int argc, char *argv[])
fd = creat(filename, 0644);
err = ftruncate(fd, 0);
+ if (err < 0)
+ fprintf(stderr, "%s (%d)\n", strerror(errno), errno);
memset(value, 0, sizeof(value));
for (i = 0; i < (size / sizeof(value)); i++)
diff --git a/tools/hciattach.c b/tools/hciattach.c
index e4d5aa1..bc56f31 100644
--- a/tools/hciattach.c
+++ b/tools/hciattach.c
@@ -351,7 +351,7 @@ static int bcsp_max_retries = 10;
static void bcsp_tshy_sig_alarm(int sig)
{
unsigned char bcsp_sync_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xda,0xdc,0xed,0xed,0xc0};
- int len;
+ int __attribute__((__unused__)) len;
static int retries = 0;
if (retries < bcsp_max_retries) {
@@ -369,7 +369,7 @@ static void bcsp_tshy_sig_alarm(int sig)
static void bcsp_tconf_sig_alarm(int sig)
{
unsigned char bcsp_conf_pkt[10] = {0xc0,0x00,0x41,0x00,0xbe,0xad,0xef,0xac,0xed,0xc0};
- int len;
+ int __attribute__((__unused__)) len;
static int retries = 0;
if (retries < bcsp_max_retries){
@@ -394,7 +394,7 @@ static int bcsp(int fd, struct uart_t *u, struct termios *ti)
bcspconf[4] = {0xad,0xef,0xac,0xed},
bcspconfresp[4] = {0xde,0xad,0xd0,0xd0};
struct sigaction sa;
- int len;
+ int __attribute__((__unused__)) len;
if (set_speed(fd, ti, u->speed) < 0) {
perror("Can't set default baud rate");
diff --git a/tools/hcitool.c b/tools/hcitool.c
index a117449..ece187c 100644
--- a/tools/hcitool.c
+++ b/tools/hcitool.c
@@ -2351,7 +2351,6 @@ static int print_advertising_devices(int dd, uint8_t filter_type)
unsigned char buf[HCI_MAX_EVENT_SIZE], *ptr;
struct hci_filter nf, of;
socklen_t olen;
- hci_event_hdr *hdr;
int num, len;
olen = sizeof(of);
@@ -2382,7 +2381,6 @@ static int print_advertising_devices(int dd, uint8_t filter_type)
goto done;
}
- hdr = (void *) (buf + 1);
ptr = buf + (1 + HCI_EVENT_HDR_SIZE);
len -= (1 + HCI_EVENT_HDR_SIZE);
--
1.7.5.1
