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| author |   Jonathan Corbet <corbet@lwn.net> | 2008-05-15 11:16:21 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-06-20 14:05:48 -0600 |
| commit | 2d863e92ec1b1deb8167d7f5266f754f258e876a (patch) | |
| tree | 03022f90fa2f46ed293fe1d9087794d002afcc86 /drivers/char/viotape.c | |
| parent | misc: cdev lock_kernel() pushdown (diff) | |
| download | linux-dev-2d863e92ec1b1deb8167d7f5266f754f258e876a.tar.xz linux-dev-2d863e92ec1b1deb8167d7f5266f754f258e876a.zip | |
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.c | 3 |
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 @@ #include <linux/completion.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/ioctls.h> @@ -687,6 +688,7 @@ static int viotap_open(struct inode *inode, struct file *file) if (op == NULL) return -ENOMEM; + lock_kernel() get_dev_info(file->f_path.dentry->d_inode, &devi); /* Note: We currently only support one mode! */ @@ -717,6 +719,7 @@ static int viotap_open(struct inode *inode, struct file *file) free_op: free_op_struct(op); + unlock_kernel(); return ret; } |