The patch titled
fix spinlock usage in hysdn_log_close()
has been removed from the -mm tree. Its filename was
fix-spinlock-usage-in-hysdn_log_close.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: fix spinlock usage in hysdn_log_close()
From: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
Fix incorrect spinlock use in hysdn_log_close(). The function declared a
spinlock on the stack and used it to 'protect' a shared driver structure.
The patch simply removes the useless code.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
Cc: Karsten Keil <kkeil@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/isdn/hysdn/hysdn_proclog.c | 4 ----
1 file changed, 4 deletions(-)
diff -puN drivers/isdn/hysdn/hysdn_proclog.c~fix-spinlock-usage-in-hysdn_log_close drivers/isdn/hysdn/hysdn_proclog.c
--- a/drivers/isdn/hysdn/hysdn_proclog.c~fix-spinlock-usage-in-hysdn_log_close
+++ a/drivers/isdn/hysdn/hysdn_proclog.c
@@ -297,8 +297,6 @@ hysdn_log_close(struct inode *ino, struc
struct procdata *pd;
hysdn_card *card;
int retval = 0;
- unsigned long flags;
- spinlock_t hysdn_lock = SPIN_LOCK_UNLOCKED;
lock_kernel();
if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) {
@@ -308,7 +306,6 @@ hysdn_log_close(struct inode *ino, struc
/* read access -> log/debug read, mark one further file as closed */
pd = NULL;
- spin_lock_irqsave(&hysdn_lock, flags);
inf = *((struct log_data **) filep->private_data); /* get first log entry */
if (inf)
pd = (struct procdata *) inf->proc_ctrl; /* still entries there */
@@ -331,7 +328,6 @@ hysdn_log_close(struct inode *ino, struc
inf->usage_cnt--; /* decrement usage count for buffers */
inf = inf->next;
}
- spin_unlock_irqrestore(&hysdn_lock, flags);
if (pd)
if (pd->if_used <= 0) /* delete buffers if last file closed */
_
Patches currently in -mm which might be from matthias.kaehlcke@xxxxxxxxx are
origin.patch
kcopyd-use-mutex-instead-of-semaphore.patch
power-management-use-mutexes-instead-of-semaphores.patch
sysdev-use-mutex-instead-of-semaphore.patch
git-dvb.patch
scx200-use-mutex-instead-of-semaphore.patch
use-mutex-instead-of-binary-semaphore-in-idt77252-driver.patch
git-scsi-misc.patch
use-mutex-instead-of-binary-semaphore-in-cdu-31a-driver.patch
use-mutex-instead-of-semaphore-in-sbpcd-driver.patch
use-mutex-instead-of-semaphore-in-berkshire-usb-pc-watchdog-driver.patch
git-watchdog.patch
-
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