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OpenCloudOS-Kernel
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viotape: cdev lock_kernel pushdown () 

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-05-15 11:16:21 -06:00
parent 309c4551c0
commit 2d863e92ec
1 changed files with 3 additions and 0 deletions
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3
drivers/char/viotape.c
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@ -46,6 +46,7 @@
#include <linux/completion.h> #include <linux/completion.h>
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/ioctls.h> #include <asm/ioctls.h>
@ -687,6 +688,7 @@ static int viotap_open(struct inode *inode, struct file *file)
if (op == NULL) if (op == NULL)
return -ENOMEM; return -ENOMEM;
lock_kernel()
get_dev_info(file->f_path.dentry->d_inode, &devi); get_dev_info(file->f_path.dentry->d_inode, &devi);
/* Note: We currently only support one mode! */ /* 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:
free_op_struct(op); free_op_struct(op);
unlock_kernel();
return ret; return ret;
} }