diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0789-drm-amdgpu-get-core-kref-in-sem_import-V2.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0789-drm-amdgpu-get-core-kref-in-sem_import-V2.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0789-drm-amdgpu-get-core-kref-in-sem_import-V2.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0789-drm-amdgpu-get-core-kref-in-sem_import-V2.patch new file mode 100644 index 00000000..79262db9 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0789-drm-amdgpu-get-core-kref-in-sem_import-V2.patch @@ -0,0 +1,47 @@ +From 57f06ca4585907aa42a2dcc656d762218940ff85 Mon Sep 17 00:00:00 2001 +From: Chunming Zhou <David1.Zhou@amd.com> +Date: Fri, 10 Feb 2017 17:07:05 +0800 +Subject: [PATCH 0789/4131] drm/amdgpu: get core->kref in sem_import V2 + +V2: remove mutex protection for core->kref + +Change-Id: I39c83946e7bf078b4a527ba26747cc4f400592e0 +Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> +Reviewed-by: David Mao <David.Mao@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c | 8 +++++--- + 1 file changed, 5 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c +index 3c4ee76..a30b5cb 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c +@@ -225,10 +225,11 @@ static int amdgpu_sem_import(struct amdgpu_fpriv *fpriv, + return -EINVAL; + } + ++ kref_get(&core->kref); + sem = amdgpu_sem_alloc(); + if (!sem) { + ret = -ENOMEM; +- goto err_out; ++ goto err_sem; + } + + sem->base = core; +@@ -246,9 +247,10 @@ static int amdgpu_sem_import(struct amdgpu_fpriv *fpriv, + + *handle = ret; + return 0; +- ++err_sem: ++ kref_put(&core->kref, amdgpu_sem_core_free); + err_out: +- kfree(sem); ++ amdgpu_sem_put(sem); + return ret; + + } +-- +2.7.4 + |