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[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>
This commit is contained in:
Laura Abbott 2015-10-05 19:33:29 -03:00 committed by Mauro Carvalho Chehab
parent 3bbc78aeff
commit d2cc2f0b35
1 changed files with 1 additions and 0 deletions
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1
drivers/media/tuners/si2157.c
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@ -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);