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sh: cdev lock_kernel() pushdown 

Push the cdev lock_kernel() call down into the sh gio driver.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-05-15 09:11:26 -06:00
parent 7558da942e
commit 1fa984b583
1 changed files with 7 additions and 3 deletions
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10
arch/sh/boards/landisk/gio.c
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@ -14,6 +14,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/kdev_t.h>
#include <linux/cdev.h>
#include <linux/fs.h>
@ -32,17 +33,20 @@ static int openCnt;
static int gio_open(struct inode *inode, struct file *filp)
{
int minor;
int ret = -ENOENT;
lock_kernel();
minor = MINOR(inode->i_rdev);
if (minor < DEVCOUNT) {
if (openCnt > 0) {
return -EALREADY;
ret = -EALREADY;
} else {
openCnt++;
return 0;
ret = 0;
}
}
return -ENOENT;
unlock_kernel();
return ret;
}
static int gio_close(struct inode *inode, struct file *filp)