---

yaml --- r: 100369 b: refs/heads/master c: 930ab4e h: refs/heads/master i: 100367: f0b274d v: v3
git-mirror · Jul 2, 2008 · 589dc7e · 589dc7e
1 parent bf50726
commit 589dc7e
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fd3e05b6c82ebee06f888482975172028e89382d
+refs/heads/master: 930ab4e532623795f934467c452a8c71be2c30fe
diff --git a/trunk/drivers/char/nvram.c b/trunk/drivers/char/nvram.c
@@ -107,6 +107,7 @@
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/spinlock.h>
+#include <linux/smp_lock.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -333,12 +334,14 @@ nvram_ioctl(struct inode *inode, struct file *file,
 static int
 nvram_open(struct inode *inode, struct file *file)
 {
+	lock_kernel();
 	spin_lock(&nvram_state_lock);
 
 	if ((nvram_open_cnt && (file->f_flags & O_EXCL)) ||
 	    (nvram_open_mode & NVRAM_EXCL) ||
 	    ((file->f_mode & 2) && (nvram_open_mode & NVRAM_WRITE))) {
 		spin_unlock(&nvram_state_lock);
+		unlock_kernel();
 		return -EBUSY;
 	}
 
@@ -349,6 +352,7 @@ nvram_open(struct inode *inode, struct file *file)
 	nvram_open_cnt++;
 
 	spin_unlock(&nvram_state_lock);
+	unlock_kernel();
 
 	return 0;
 }