diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2009-10-10 15:35:43 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-10-14 17:33:32 +0200 |
| commit | 40b798efe3460797a4ac928ee2e038774e2758eb (patch) | |
| tree | 1acade9e91b9bf2c465d293dcfc383a236d616fa /drivers/char/misc.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block (diff) | |
| download | wireguard-linux-40b798efe3460797a4ac928ee2e038774e2758eb.tar.xz wireguard-linux-40b798efe3460797a4ac928ee2e038774e2758eb.zip | |
drivers: Remove BKL from misc_open
misc_open() is already serialized with misc_mtx. Remove the BKL
locking which got there via the BKL pushdown.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
LKML-Reference: <20091010153349.237173041@linutronix.de>
Diffstat (limited to 'drivers/char/misc.c')
| -rw-r--r-- | drivers/char/misc.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 07fa612a58d5..96f1cd086dd2 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -49,7 +49,6 @@ #include <linux/device.h> #include <linux/tty.h> #include <linux/kmod.h> -#include <linux/smp_lock.h> /* * Head entry for the doubly linked miscdevice list @@ -118,8 +117,7 @@ static int misc_open(struct inode * inode, struct file * file) struct miscdevice *c; int err = -ENODEV; const struct file_operations *old_fops, *new_fops = NULL; - - lock_kernel(); + mutex_lock(&misc_mtx); list_for_each_entry(c, &misc_list, list) { @@ -157,7 +155,6 @@ static int misc_open(struct inode * inode, struct file * file) fops_put(old_fops); fail: mutex_unlock(&misc_mtx); - unlock_kernel(); return err; } |