From: Kjetil Aamodt <kjeaamod@cisco.com>
Date: Mon, 9 Sep 2013 14:23:20 +0000 (+0200)
Subject: Use IS_ERR to validate return value from get_mtd_device()
X-Git-Tag: aleph1-release~44^2~1
X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=e39f464748930c5de815c86df43704c6ba84fa0b

Use IS_ERR to validate return value from get_mtd_device()

Testing has shown that is needed.
---

diff --git a/yaffs_vfs_multi.c b/yaffs_vfs_multi.c
index 27cc0c0..f767315 100644
--- a/yaffs_vfs_multi.c
+++ b/yaffs_vfs_multi.c
@@ -2670,7 +2670,7 @@ static struct super_block *yaffs_internal_read_super(int yaffs_version,
 
 	/* Get the device */
 	mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
-	if (!mtd) {
+	if (IS_ERR(mtd)) {
 		yaffs_trace(YAFFS_TRACE_ALWAYS,
 			"yaffs: MTD device %u either not valid or unavailable",
 			MINOR(sb->s_dev));