[PATCH 4.19 195/205] drm/i915: Fix error handling for the NV12 fb dimensions check

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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

commit f42f343887016330b321dd40eebc68c7292e4f1b upstream.

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

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

---
 drivers/gpu/drm/i915/intel_display.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14582,7 +14582,7 @@ static int intel_framebuffer_init(struct
 	     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++) {





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