From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Mon, 29 Oct 2018 14:00:31 +0000 (+0200)
Subject: drm/i915: Fix error handling for the NV12 fb dimensions check
X-Git-Tag: v4.18.20~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=877e75bc93ecb8d7c7eeeaa7304cd3d030e36a58;p=thirdparty%2Fkernel%2Fstable.git

drm/i915: Fix error handling for the NV12 fb dimensions check

commit f42f343887016330b321dd40eebc68c7292e4f1b upstream.

Let's not leak obj->framebuffer_references when we decide that
the framebuffer domensions are not suitable for NV12.

Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Fixes: e44134f2673c ("drm/i915: Add NV12 support to intel_framebuffer_init")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181029140031.11765-1-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 3b90946fcb6f13b65888c380461793a9dea9d1f4)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e4b9d7118358b..8ab77745272eb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14383,7 +14383,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 	     fb->height < SKL_MIN_YUV_420_SRC_H ||
 	     (fb->width % 4) != 0 || (fb->height % 4) != 0)) {
 		DRM_DEBUG_KMS("src dimensions not correct for NV12\n");
-		return -EINVAL;
+		goto err;
 	}
 
 	for (i = 0; i < fb->format->num_planes; i++) {