From: Zhen Lei Date: Thu, 13 May 2021 13:46:38 +0000 (+0800) Subject: drm/kmb: Fix error return code in kmb_hw_init() X-Git-Tag: v5.13~16^2^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6fd8f323b3e4e5290d02174559308669507c00dd;p=thirdparty%2Flinux.git drm/kmb: Fix error return code in kmb_hw_init() When the call to platform_get_irq() to obtain the IRQ of the lcd fails, the returned error code should be propagated. However, we currently do not explicitly assign this error code to 'ret'. As a result, 0 was incorrectly returned. Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display") Reported-by: Hulk Robot Signed-off-by: Zhen Lei Signed-off-by: Anitha Chrisanthus Link: https://patchwork.freedesktop.org/patch/msgid/20210513134639.6541-1-thunder.leizhen@huawei.com --- diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c index f64e06e1067dd..96ea1a2c11dd6 100644 --- a/drivers/gpu/drm/kmb/kmb_drv.c +++ b/drivers/gpu/drm/kmb/kmb_drv.c @@ -137,6 +137,7 @@ static int kmb_hw_init(struct drm_device *drm, unsigned long flags) /* Allocate LCD interrupt resources */ irq_lcd = platform_get_irq(pdev, 0); if (irq_lcd < 0) { + ret = irq_lcd; drm_err(&kmb->drm, "irq_lcd not found"); goto setup_fail; }