linux-kernel - [PATCH v2] exynos-drm: Fix unsupported GEM memory type error message to be clear

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Date:	Mon,  8 Aug 2016 17:48:20 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	inki.dae@...sung.com, jy0922.shim@...sung.com,
	sw0312.kim@...sung.com, kyungmin.park@...sung.com,
	airlied@...ux.ie, kgene@...nel.org, k.kozlowski@...sung.com
Cc:	Shuah Khan <shuahkh@....samsung.com>,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] exynos-drm: Fix unsupported GEM memory type error message to be clear

Fix unsupported GEM memory type error message to include the memory type
information.

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
Changes since v1:
-- Comment changed to read clearly

 drivers/gpu/drm/exynos/exynos_drm_fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index e016640..40ce841 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -55,11 +55,11 @@ static int check_fb_gem_memory_type(struct drm_device *drm_dev,
 	flags = exynos_gem->flags;
 
 	/*
-	 * without iommu support, not support physically non-continuous memory
-	 * for framebuffer.
+	 * Physically non-contiguous memory type for framebuffer is not
+	 * supported without IOMMU.
 	 */
 	if (IS_NONCONTIG_BUFFER(flags)) {
-		DRM_ERROR("cannot use this gem memory type for fb.\n");
+		DRM_ERROR("Non-contiguous GEM memory is not supported.\n");
 		return -EINVAL;
 	}
 
-- 
2.7.4