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Tue, 09 Jul 2019 10:13:29 -0700 (PDT) From: Nishka Dasgupta To: miquel.raynal@bootlin.com, richard@nod.at, dwmw2@infradead.org, computersforpeace@gmail.com, marek.vasut@gmail.com, vigneshr@ti.com, linux-mtd@lists.infradead.org, marc.w.gonzalez@free.fr, mans@mansr.com Subject: [PATCH] mtd: rawnand: tango: Add of_node_put() before return Date: Tue, 9 Jul 2019 22:43:16 +0530 Message-Id: <20190709171316.13451-1-nishkadg.linux@gmail.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190709_101330_730879_0F2C5195 X-CRM114-Status: GOOD ( 10.05 ) X-Spam-Score: 1.1 (+) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (1.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:444 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (nishkadg.linux[at]gmail.com) 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 1.3 PDS_NO_HELO_DNS High profile HELO but no A record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishka Dasgupta Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Each iteration of for_each_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta Acked-by: Mans Rullgard --- drivers/mtd/nand/raw/tango_nand.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c index b3f2cabcc7c0..9acf2de37ee0 100644 --- a/drivers/mtd/nand/raw/tango_nand.c +++ b/drivers/mtd/nand/raw/tango_nand.c @@ -659,6 +659,7 @@ static int tango_nand_probe(struct platform_device *pdev) err = chip_init(&pdev->dev, np); if (err) { tango_nand_remove(pdev); + of_node_put(np); return err; } }