linux-kernel - [PATCH 4.4 071/115] video: fbdev: au1200fb: Return an error code if a memory allocation fails

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Message-Id: <20171218152857.273729513@linuxfoundation.org>
Date:   Mon, 18 Dec 2017 16:49:00 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Tejun Heo <tj@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 071/115] video: fbdev: au1200fb: Return an error code if a memory allocation fails

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>


[ Upstream commit 8cae353e6b01ac3f18097f631cdbceb5ff28c7f3 ]

'ret' is known to be 0 at this point.
In case of memory allocation error in 'framebuffer_alloc()', return
-ENOMEM instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Tejun Heo <tj@...nel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/video/fbdev/au1200fb.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/video/fbdev/au1200fb.c
+++ b/drivers/video/fbdev/au1200fb.c
@@ -1680,8 +1680,10 @@ static int au1200fb_drv_probe(struct pla
 
 		fbi = framebuffer_alloc(sizeof(struct au1200fb_device),
 					&dev->dev);
-		if (!fbi)
+		if (!fbi) {
+			ret = -ENOMEM;
 			goto failed;
+		}
 
 		_au1200fb_infos[plane] = fbi;
 		fbdev = fbi->par;