提交 d4514d1b 编写于 作者: J Jonathan Corbet

aacraid: cdev lock_kernel() pushdown

Signed-off-by: NJonathan Corbet <corbet@lwn.net>
上级 647d87bd
......@@ -38,6 +38,7 @@
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/syscalls.h>
#include <linux/delay.h>
......@@ -667,6 +668,7 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
unsigned minor_number = iminor(inode);
int err = -ENODEV;
lock_kernel(); /* BKL pushdown: nothing else protects this list */
list_for_each_entry(aac, &aac_devices, entry) {
if (aac->id == minor_number) {
file->private_data = aac;
......@@ -674,6 +676,7 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
break;
}
}
unlock_kernel();
return err;
}
......
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