From: Jonathan Corbet <corbet@lwn.net>
Date: Thu, 15 May 2008 15:09:23 +0000 (-0600)
Subject: bsg: cdev lock_kernel() pushdown
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=75bd2ef1457998791cfc89cd59927574488fc22a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

bsg: cdev lock_kernel() pushdown

Push the cdev lock_kernel call into bsg_open().

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

diff --git a/block/bsg.c b/block/bsg.c
index f0b7cd343216..dbe3ffd505ca 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -19,6 +19,7 @@
 #include <linux/uio.h>
 #include <linux/idr.h>
 #include <linux/bsg.h>
+#include <linux/smp_lock.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_ioctl.h>
@@ -834,7 +835,11 @@ static struct bsg_device *bsg_get_device(struct inode *inode, struct file *file)
 
 static int bsg_open(struct inode *inode, struct file *file)
 {
-	struct bsg_device *bd = bsg_get_device(inode, file);
+	struct bsg_device *bd;
+
+	lock_kernel();
+	bd = bsg_get_device(inode, file);
+	unlock_kernel();
 
 	if (IS_ERR(bd))
 		return PTR_ERR(bd);