From 9c74034f8fc5d93fbe5656421cbbdc4c76ddda28 Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <dedekind@infradead.org>
Date: Wed, 11 Oct 2006 14:52:47 +0300
Subject: [MTD] return error code from get_mtd_device()

get_mtd_device() returns NULL in case of any failure. Teach it to return an
error code instead. Fix all users as well.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
---
 drivers/mtd/mtdchar.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/mtd/mtdchar.c')

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 7c4adc64132..3013d0883b9 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -7,6 +7,7 @@
 
 #include <linux/device.h>
 #include <linux/fs.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -100,8 +101,8 @@ static int mtd_open(struct inode *inode, struct file *file)
 
 	mtd = get_mtd_device(NULL, devnum);
 
-	if (!mtd)
-		return -ENODEV;
+	if (IS_ERR(mtd))
+		return PTR_ERR(mtd);
 
 	if (MTD_ABSENT == mtd->type) {
 		put_mtd_device(mtd);
-- 
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