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authorJonathan Corbet <corbet@lwn.net>2008-05-15 13:16:21 -0400
committerJonathan Corbet <corbet@lwn.net>2008-06-20 16:05:48 -0400
commit2d863e92ec1b1deb8167d7f5266f754f258e876a (patch)
tree03022f90fa2f46ed293fe1d9087794d002afcc86 /drivers/char/viotape.c
parent309c4551c0fa0897d5343c36cbfbfa39f1f41b88 (diff)
viotape: cdev lock_kernel pushdown ()
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/char/viotape.c')
-rw-r--r--drivers/char/viotape.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index 58aad63831f4..af03d2709300 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -46,6 +46,7 @@
46#include <linux/completion.h> 46#include <linux/completion.h>
47#include <linux/proc_fs.h> 47#include <linux/proc_fs.h>
48#include <linux/seq_file.h> 48#include <linux/seq_file.h>
49#include <linux/smp_lock.h>
49 50
50#include <asm/uaccess.h> 51#include <asm/uaccess.h>
51#include <asm/ioctls.h> 52#include <asm/ioctls.h>
@@ -687,6 +688,7 @@ static int viotap_open(struct inode *inode, struct file *file)
687 if (op == NULL) 688 if (op == NULL)
688 return -ENOMEM; 689 return -ENOMEM;
689 690
691 lock_kernel()
690 get_dev_info(file->f_path.dentry->d_inode, &devi); 692 get_dev_info(file->f_path.dentry->d_inode, &devi);
691 693
692 /* Note: We currently only support one mode! */ 694 /* Note: We currently only support one mode! */
@@ -717,6 +719,7 @@ static int viotap_open(struct inode *inode, struct file *file)
717 719
718free_op: 720free_op:
719 free_op_struct(op); 721 free_op_struct(op);
722 unlock_kernel();
720 return ret; 723 return ret;
721} 724}
722 725