diff options
Diffstat (limited to 'drivers/block/paride/pt.c')
| -rw-r--r-- | drivers/block/paride/pt.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 27455ee1e9da..5c74c3574a5a 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -650,8 +650,11 @@ static int pt_open(struct inode *inode, struct file *file) struct pt_unit *tape = pt + unit; int err; - if (unit >= PT_UNITS || (!tape->present)) + lock_kernel(); + if (unit >= PT_UNITS || (!tape->present)) { + unlock_kernel(); return -ENODEV; + } err = -EBUSY; if (!atomic_dec_and_test(&tape->available)) @@ -678,10 +681,12 @@ static int pt_open(struct inode *inode, struct file *file) } file->private_data = tape; + unlock_kernel(); return 0; out: atomic_inc(&tape->available); + unlock_kernel(); return err; } |