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Message-ID: <1394087661-24504-1-git-send-email-Li.Xiubo@freescale.com> Date: Thu, 6 Mar 2014 14:34:21 +0800 From: Xiubo Li <Li.Xiubo@...escale.com> To: <airlied@...ux.ie>, <dri-devel@...ts.freedesktop.org> CC: <linux-kernel@...r.kernel.org>, Xiubo Li <Li.Xiubo@...escale.com> Subject: [PATCH] drm/fb-helper: Do the mode_set.connectors ZERO_SIZE_PTR check Since we cannot make sure the 'max_conn_count' will always be none zero from the users, and then if max_conn_count equals to zero, the kcalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16). So this patch fix this via doing the zero pionter check of it. Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com> --- drivers/gpu/drm/drm_fb_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 3d13ca6e2..c6680ef 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -536,7 +536,7 @@ int drm_fb_helper_init(struct drm_device *dev, sizeof(struct drm_connector *), GFP_KERNEL); - if (!fb_helper->crtc_info[i].mode_set.connectors) + if (ZERO_OR_NULL_PTR(fb_helper->crtc_info[i].mode_set.connectors)) goto out_free; fb_helper->crtc_info[i].mode_set.num_connectors = 0; } -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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