From 629c30db7c6812fe82d2dcc0110c9e994a831182 Mon Sep 17 00:00:00 2001 From: Li Zhong Date: Wed, 21 Sep 2022 21:17:56 -0700 Subject: [PATCH] drivers/amd/pm: check the return value of amdgpu_bo_kmap MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit amdgpu_bo_kmap() returns error when fails to map buffer object. Add the error check and propagate the error. Reviewed-by: Evan Quan Reviewed-by: Christian König Signed-off-by: Li Zhong Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c index 1eb4e61..ec05585 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c @@ -1485,6 +1485,7 @@ static int pp_get_prv_buffer_details(void *handle, void **addr, size_t *size) { struct pp_hwmgr *hwmgr = handle; struct amdgpu_device *adev = hwmgr->adev; + int err; if (!addr || !size) return -EINVAL; @@ -1492,7 +1493,9 @@ static int pp_get_prv_buffer_details(void *handle, void **addr, size_t *size) *addr = NULL; *size = 0; if (adev->pm.smu_prv_buffer) { - amdgpu_bo_kmap(adev->pm.smu_prv_buffer, addr); + err = amdgpu_bo_kmap(adev->pm.smu_prv_buffer, addr); + if (err) + return err; *size = adev->pm.smu_prv_buffer_size; } -- 2.7.4