From: Laura Abbott <labbott@fedoraproject.org>
Date: Mon, 5 Oct 2015 22:33:29 +0000 (-0300)
Subject: [media] si2157: return -EINVAL if firmware blob is too big
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d2cc2f0b35465951eaaf0387fd55e29835ed7ea6;p=linux.git

[media] si2157: return -EINVAL if firmware blob is too big

A previous patch added a check if the firmware is too big, but it didn't
set the return error code with the right value.

[mchehab@osg.samsung.com: I ended by applying a v1 of Laura's patch, without
 the proper return code. This patch contains the difference between v2 and v1 of
 the Laura's "si2157: Bounds check firmware" patch]
Cc: stable@kernel.org
Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Reviewed-by: Olli Salonen <olli.salonen@iki.fi>
Tested-by: Olli Salonen <olli.salonen@iki.fi>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index ce157edd45fa1..0e1ca2b00e61e 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -168,6 +168,7 @@ static int si2157_init(struct dvb_frontend *fe)
 		len = fw->data[fw->size - remaining];
 		if (len > SI2157_ARGLEN) {
 			dev_err(&client->dev, "Bad firmware length\n");
+			ret = -EINVAL;
 			goto err_release_firmware;
 		}
 		memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);