From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arvind Yadav Subject: [PATCH 04/10] can: xilinx: Handle return value of platform_get_irq Date: Sun, 3 Dec 2017 00:56:16 +0530 Message-ID: <1512242782-7134-5-git-send-email-arvind.yadav.cs@gmail.com> References: <1512242782-7134-1-git-send-email-arvind.yadav.cs@gmail.com> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org To: wg@grandegger.com, mkl@pengutronix.de, michal.simek@xilinx.com, opendmb@gmail.com, f.fainelli@gmail.com, davem@davemloft.net, Vladislav.Zakharov@synopsys.com Return-path: In-Reply-To: <1512242782-7134-1-git-send-email-arvind.yadav.cs@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org platform_get_irq() can fail here and we must check its return value. Signed-off-by: Arvind Yadav --- drivers/net/can/xilinx_can.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 89aec07..e36e2a2 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -1111,6 +1111,10 @@ static int xcan_probe(struct platform_device *pdev) /* Get IRQ for the device */ ndev->irq = platform_get_irq(pdev, 0); + if (ndev->irq <= 0) { + ret = ndev->irq ? ndev->irq : -ENODEV; + goto err_free; + } ndev->flags |= IFF_ECHO; /* We support local echo */ platform_set_drvdata(pdev, ndev); -- 2.7.4