diff mbox series

[v4.19-v6.1] drm/amdgpu: Using uninitialized value *size when calling

Message ID 20240828151607.448360-2-vamsi-krishna.brahmajosyula@broadcom.com (mailing list archive)
State New, archived
Headers show
Series [v4.19-v6.1] drm/amdgpu: Using uninitialized value *size when calling | expand

Commit Message

Vamsi Krishna Brahmajosyula Aug. 28, 2024, 3:15 p.m. UTC
From: Jesse Zhang <jesse.zhang@amd.com>

[ Upstream commit 88a9a467c548d0b3c7761b4fd54a68e70f9c0944 ]

Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
V2: To really improve the handling we would actually
   need to have a separate value of 0xffffffff.(Christian)

Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Vamsi Krishna Brahmajosyula <vamsi-krishna.brahmajosyula@broadcom.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Greg KH Aug. 29, 2024, 4:19 p.m. UTC | #1
On Wed, Aug 28, 2024 at 10:15:56AM -0500, Vamsi Krishna Brahmajosyula wrote:
> From: Jesse Zhang <jesse.zhang@amd.com>
> 
> [ Upstream commit 88a9a467c548d0b3c7761b4fd54a68e70f9c0944 ]
> 
> Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
> V2: To really improve the handling we would actually
>    need to have a separate value of 0xffffffff.(Christian)
> 
> Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
> Suggested-by: Christian König <christian.koenig@amd.com>
> Reviewed-by: Christian König <christian.koenig@amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> Signed-off-by: Vamsi Krishna Brahmajosyula <vamsi-krishna.brahmajosyula@broadcom.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Now queued up, thanks.

greg k-h
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index ecaa2d748..0a28daa14 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -725,7 +725,8 @@  int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
 	uint32_t created = 0;
 	uint32_t allocated = 0;
 	uint32_t tmp, handle = 0;
-	uint32_t *size = &tmp;
+	uint32_t dummy = 0xffffffff;
+	uint32_t *size = &dummy;
 	unsigned idx;
 	int i, r = 0;