From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764375AbdKRJgP (ORCPT ); Sat, 18 Nov 2017 04:36:15 -0500 Received: from mail-pg0-f67.google.com ([74.125.83.67]:35945 "EHLO mail-pg0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1163308AbdKRJef (ORCPT ); Sat, 18 Nov 2017 04:34:35 -0500 X-Google-Smtp-Source: AGs4zMYGfijPMO0ccUEMDw184/h0JfOpKFYQjXwmXy0pT3iIqgOOGYV4AbQGi7umO5wQ4AIIMbuZWw== From: Arvind Yadav To: ben-linux@fluff.org, ulf.hansson@linaro.org, adrian.hunter@intel.com, vireshk@kernel.org, maxime.ripard@free-electrons.com, wens@csie.org, linux@armlinux.org.uk, carlo@caione.org, khilman@baylibre.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, linux-amlogic@lists.infradead.org Subject: [PATCH 6/6 v2] mmc: sunxi-mmc: Handle return value of platform_get_irq Date: Sat, 18 Nov 2017 15:03:48 +0530 Message-Id: <27a6d3a22516b3711b48bfbf305b6d8f3960eeac.1510997223.git.arvind.yadav.cs@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <130df0c2c60ed6a0f460b68c586cc0a4167aed0b.1510997223.git.arvind.yadav.cs@gmail.com> References: <130df0c2c60ed6a0f460b68c586cc0a4167aed0b.1510997223.git.arvind.yadav.cs@gmail.com> In-Reply-To: <130df0c2c60ed6a0f460b68c586cc0a4167aed0b.1510997223.git.arvind.yadav.cs@gmail.com> References: <130df0c2c60ed6a0f460b68c586cc0a4167aed0b.1510997223.git.arvind.yadav.cs@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org platform_get_irq() can fail here and we must check its return value. Signed-off-by: Arvind Yadav --- changes in v2 : Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid. drivers/mmc/host/sunxi-mmc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c index cc98355d..ec2a16b 100644 --- a/drivers/mmc/host/sunxi-mmc.c +++ b/drivers/mmc/host/sunxi-mmc.c @@ -1255,6 +1255,11 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host, goto error_assert_reset; host->irq = platform_get_irq(pdev, 0); + if (host->irq <= 0) { + ret = host->irq; + goto error_assert_reset; + } + return devm_request_threaded_irq(&pdev->dev, host->irq, sunxi_mmc_irq, sunxi_mmc_handle_manual_stop, 0, "sunxi-mmc", host); -- 2.7.4