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authorArnd Bergmann <arnd@arndb.de>2010-06-05 13:28:09 +0200
committerArnd Bergmann <arnd@arndb.de>2010-09-26 16:25:52 +0200
commit6117d2130c9da5977e975ad9fa607b86d6516a44 (patch)
tree33bdc9860f330dce32867b7eea4b96d0c56fb2c1
parentcfdb00a77ea7d5fb922fd985e5dfbcb36873411b (diff)
downloadlinux-linaro-6117d2130c9da5977e975ad9fa607b86d6516a44.tar.gz
isapnp: BKL removal
Remove BKL use from isapnp_proc_bus_lseek(), like was done for proc_bus_pci_lseek() a long time ago and recently for Zorro by Geert Uytterhoeven. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jaroslav Kysela <perex@perex.cz>
-rw-r--r--drivers/pnp/isapnp/proc.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 3f94edab25f..e73ebefdf3e 100644
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -31,8 +31,9 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
{
loff_t new = -1;
+ struct inode *inode = file->f_path.dentry->d_inode;
- lock_kernel();
+ mutex_lock(&inode->i_mutex);
switch (whence) {
case 0:
new = off;
@@ -44,12 +45,12 @@ static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
new = 256 + off;
break;
}
- if (new < 0 || new > 256) {
- unlock_kernel();
- return -EINVAL;
- }
- unlock_kernel();
- return (file->f_pos = new);
+ if (new < 0 || new > 256)
+ new = -EINVAL;
+ else
+ file->f_pos = new;
+ mutex_unlock(&inode->i_mutex);
+ return new;
}
static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,