The patch titled
ds1302: push down the BKL into the driver ioctl code
has been removed from the -mm tree. Its filename was
ds1302-push-down-the-bkl-into-the-driver-ioctl-code.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ds1302: push down the BKL into the driver ioctl code
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Cc: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/ds1302.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff -puN drivers/char/ds1302.c~ds1302-push-down-the-bkl-into-the-driver-ioctl-code drivers/char/ds1302.c
--- a/drivers/char/ds1302.c~ds1302-push-down-the-bkl-into-the-driver-ioctl-code
+++ a/drivers/char/ds1302.c
@@ -20,10 +20,11 @@
#include <linux/miscdevice.h>
#include <linux/delay.h>
#include <linux/bcd.h>
+#include <linux/smp_lock.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
-#include <asm/uaccess.h>
#include <asm/system.h>
-#include <asm/io.h>
#include <asm/rtc.h>
#if defined(CONFIG_M32R)
#include <asm/m32r.h>
@@ -153,9 +154,7 @@ static unsigned char days_in_mo[] =
/* ioctl that supports RTC_RD_TIME and RTC_SET_TIME (read and set time/date). */
-static int
-rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
+static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
unsigned long flags;
@@ -165,7 +164,9 @@ rtc_ioctl(struct inode *inode, struct fi
struct rtc_time rtc_tm;
memset(&rtc_tm, 0, sizeof (struct rtc_time));
+ lock_kernel();
get_rtc_time(&rtc_tm);
+ unlock_kernel();
if (copy_to_user((struct rtc_time*)arg, &rtc_tm, sizeof(struct rtc_time)))
return -EFAULT;
return 0;
@@ -217,6 +218,7 @@ rtc_ioctl(struct inode *inode, struct fi
BIN_TO_BCD(mon);
BIN_TO_BCD(yrs);
+ lock_kernel();
local_irq_save(flags);
CMOS_WRITE(yrs, RTC_YEAR);
CMOS_WRITE(mon, RTC_MONTH);
@@ -225,6 +227,7 @@ rtc_ioctl(struct inode *inode, struct fi
CMOS_WRITE(min, RTC_MINUTES);
CMOS_WRITE(sec, RTC_SECONDS);
local_irq_restore(flags);
+ unlock_kernel();
/* Notice that at this point, the RTC is updated but
* the kernel is still running with the old time.
@@ -244,8 +247,10 @@ rtc_ioctl(struct inode *inode, struct fi
if(copy_from_user(&tcs_val, (int*)arg, sizeof(int)))
return -EFAULT;
+ lock_kernel();
tcs_val = RTC_TCR_PATTERN | (tcs_val & 0x0F);
ds1302_writereg(RTC_TRICKLECHARGER, tcs_val);
+ unlock_kernel();
return 0;
}
default:
@@ -282,7 +287,7 @@ get_rtc_status(char *buf)
static const struct file_operations rtc_fops = {
.owner = THIS_MODULE,
- .ioctl = rtc_ioctl,
+ .unlocked_ioctl = rtc_ioctl,
};
/* Probe for the chip by writing something to its RAM and try reading it back. */
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
origin.patch
hugetlb-fix-config_sysctl=n-build.patch
add-time_is_after_jiffies-and-others-which-compare-with-jiffies.patch
pata_viac-add-flag-for-vx800-and-add-a-function-for-fixing-internal-bugs-for-via-chipsets.patch
pnp-set-the-pnp_card-dma_mask-for-use-by-isapnp-cards.patch
isa-set-24-bit-dma_mask-for-isa-devices.patch
char-merge-ip2main-and-ip2base.patch
char-ip2-cleanup-globals.patch
char-ip2-fix-sparse-warnings.patch
char-ip2-init-deinit-cleanup.patch
ip2-avoid-add_timer-with-pending-timer.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
