From mboxrd@z Thu Jan 1 00:00:00 1970 From: miquel.raynal@bootlin.com (Miquel Raynal) Date: Wed, 19 Sep 2018 23:27:45 +0200 Subject: [PATCH v2] mtd: rawnand: atmel: Fix potential NULL pointer dereference In-Reply-To: <20180918135555.GA18114@embeddedor.com> References: <20180918135555.GA18114@embeddedor.com> Message-ID: <20180919232745.4ed2197c@xps13> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Gustavo, "Gustavo A. R. Silva" wrote on Tue, 18 Sep 2018 08:55:55 -0500: > There is a potential execution path in which function > of_find_compatible_node() returns NULL. In such a case, > we end up having a NULL pointer dereference when accessing > pointer *nfc_np* in function of_clk_get(). > > So, we better don't take any chances and fix this by null > checking pointer *nfc_np* before calling of_clk_get(). > > Addresses-Coverity-ID: 1473052 ("Dereference null return value") > Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver") > Signed-off-by: Gustavo A. R. Silva > --- Applied to nand/next. Thanks, Miqu?l