File 0132-drm-msm-Verify-that-MSM_SUBMIT_BO_FLAGS-ar... of Package drm.7971

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File 0132-drm-msm-Verify-that-MSM_SUBMIT_BO_FLAGS-are-set.patch of Package drm.7971

From 7d33b41d34f57547e66c27e96075f8210a47b1b5 Mon Sep 17 00:00:00 2001
From: Jordan Crouse <jcrouse@codeaurora.org>
Date: Tue, 20 Dec 2016 08:54:31 -0700
Subject: [PATCH] drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
References: bsc#1041744

[ Upstream commit a6cb3b864b21b7345f824a4faa12b723c8aaf099 ]

For every submission buffer object one of MSM_SUBMIT_BO_WRITE
and MSM_SUBMIT_BO_READ must be set (and nothing else). If we
allowed zero then the buffer object would never get queued to
be unreferenced.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/msm/msm_gem_submit.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -106,7 +106,8 @@ static int submit_lookup_objects(struct
 			pagefault_disable();
 		}
 
-		if (submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) {
+		if ((submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) ||
+			!(submit_bo.flags & MSM_SUBMIT_BO_FLAGS)) {
 			DRM_ERROR("invalid flags: %x\n", submit_bo.flags);
 			ret = -EINVAL;
 			goto out_unlock;

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File 0132-drm-msm-Verify-that-MSM_SUBMIT_BO_FLAGS-are-set.patch of Package drm.7971

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