From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 15 Jun 2023 10:30:30 +0000 (+0200)
Subject: media: i2c: tvp5150: check return value of devm_kasprintf()
X-Git-Tag: v6.4.16~254
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=774eb431db6009f44ab572bdc91e1fe8211aac36;p=thirdparty%2Fkernel%2Fstable.git

media: i2c: tvp5150: check return value of devm_kasprintf()

[ Upstream commit 26ce7054d804be73935b9268d6e0ecf2fbbc8aef ]

devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).

Fixes: 0556f1d580d4 ("media: tvp5150: add input source selection of_graph support")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 859f1cb2fa744..84f87c016f9b5 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -2068,6 +2068,10 @@ static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 		tvpc->ent.name = devm_kasprintf(dev, GFP_KERNEL, "%s %s",
 						v4l2c->name, v4l2c->label ?
 						v4l2c->label : "");
+		if (!tvpc->ent.name) {
+			ret = -ENOMEM;
+			goto err_free;
+		}
 	}
 
 	ep_np = of_graph_get_endpoint_by_regs(np, TVP5150_PAD_VID_OUT, 0);