From 703677d9345d87d7288ed8a2483ca424af7d4b3b Mon Sep 17 00:00:00 2001
From: xinhui pan <xinhui.pan@amd.com>
Date: Tue, 31 Aug 2021 13:49:59 +0800
Subject: [PATCH] drm/amdgpu: Fix a deadlock if previous GEM object allocation fails
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Git-commit: 703677d9345d87d7288ed8a2483ca424af7d4b3b
Patch-mainline: v5.15-rc1
References: git-fixes stable-5.14.6
Fall through to handle the error instead of return.
Fixes: f8aab60422c37 ("drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs")
Cc: stable@vger.kernel.org
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index cb07cc3b06ed..d6aa032890ee 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -341,21 +341,18 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
r = amdgpu_gem_object_create(adev, size, args->in.alignment,
initial_domain,
flags, ttm_bo_type_device, resv, &gobj);
- if (r) {
- if (r != -ERESTARTSYS) {
- if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
- flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
- goto retry;
- }
+ if (r && r != -ERESTARTSYS) {
+ if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
+ flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+ goto retry;
+ }
- if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
- initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
- goto retry;
- }
- DRM_DEBUG("Failed to allocate GEM object (%llu, %d, %llu, %d)\n",
- size, initial_domain, args->in.alignment, r);
+ if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {
+ initial_domain |= AMDGPU_GEM_DOMAIN_GTT;
+ goto retry;
}
- return r;
+ DRM_DEBUG("Failed to allocate GEM object (%llu, %d, %llu, %d)\n",
+ size, initial_domain, args->in.alignment, r);
}
if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
--
2.26.2