The amdgpu_gmc_vram_checking() function in emulation checks whether
all of the memory range of shared system memory could be accessed by
GPU, from this aspect, -EIO is returned for error scenarios.
Fixes the below:
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c:919 gmc_v6_0_hw_init() warn: missing error code? 'r'
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c:1103 gmc_v7_0_hw_init() warn: missing error code? 'r'
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1223 gmc_v8_0_hw_init() warn: missing error code? 'r'
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:2344 gmc_v9_0_hw_init() warn: missing error code? 'r'
Cc: Xiaojian Du <Xiaojian.Du@xxxxxxx>
Cc: Lijo Lazar <lijo.lazar@xxxxxxx>
Cc: Christian König <christian.koenig@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@xxxxxxx>
Suggested-by: Christian König <christian.koenig@xxxxxxx>
---
v2:
- release temporary buffers, if memcmp() fails (Christian)
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index d2f273d77e59..55784a9f26c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -1045,21 +1045,28 @@ int amdgpu_gmc_vram_checking(struct amdgpu_device *adev)
* seconds, so here, we just pick up three parts for emulation.
*/
ret = memcmp(vram_ptr, cptr, 10);
- if (ret)
- return ret;
+ if (ret) {
+ ret = -EIO;
+ goto release_buffer;
+ }
ret = memcmp(vram_ptr + (size / 2), cptr, 10);
- if (ret)
- return ret;
+ if (ret) {
+ ret = -EIO;
+ goto release_buffer;
+ }
ret = memcmp(vram_ptr + size - 10, cptr, 10);
- if (ret)
- return ret;
+ if (ret) {
+ ret = -EIO;
+ goto release_buffer;
+ }
+release_buffer:
amdgpu_bo_free_kernel(&vram_bo, &vram_gpu,
&vram_ptr);
- return 0;
+ return ret;
}
static ssize_t current_memory_partition_show(
--
2.34.1
