diff options
Diffstat (limited to 'drivers/staging/vme/devices/vme_user.c')
| -rw-r--r-- | drivers/staging/vme/devices/vme_user.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index 326991c7d47b..8f77bd24630c 100644 --- a/drivers/staging/vme/devices/vme_user.c +++ b/drivers/staging/vme/devices/vme_user.c @@ -31,7 +31,7 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/syscalls.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/types.h> #include <linux/io.h> @@ -40,6 +40,7 @@ #include "../vme.h" #include "vme_user.h" +static DEFINE_MUTEX(vme_user_mutex); static char driver_name[] = "vme_user"; static int bus[USER_BUS_MAX]; @@ -559,9 +560,9 @@ vme_user_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int ret; - lock_kernel(); + mutex_lock(&vme_user_mutex); ret = vme_user_ioctl(file->f_path.dentry->d_inode, file, cmd, arg); - unlock_kernel(); + mutex_unlock(&vme_user_mutex); return ret; } |