From: Chen Tao chentao107@huawei.com
[ Upstream commit 3e4aeff36e9212a939290c0ca70d4931c4ad1950 ]
Fix memory leak in amdgpu_debugfs_gpr_read not freeing data when pm_runtime_get_sync failed.
Fixes: a9ffe2a983383 ("drm/amdgpu/debugfs: properly handle runtime pm") Signed-off-by: Chen Tao chentao107@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index f87b225437fc3..bd5061fbe031e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -973,7 +973,7 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
r = pm_runtime_get_sync(adev->ddev->dev); if (r < 0) - return r; + goto err;
r = amdgpu_virt_enable_access_debugfs(adev); if (r < 0) @@ -1003,7 +1003,7 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf, value = data[result >> 2]; r = put_user(value, (uint32_t *)buf); if (r) { - result = r; + amdgpu_virt_disable_access_debugfs(adev); goto err; }
@@ -1012,11 +1012,14 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf, size -= 4; }
-err: - pm_runtime_put_autosuspend(adev->ddev->dev); kfree(data); amdgpu_virt_disable_access_debugfs(adev); return result; + +err: + pm_runtime_put_autosuspend(adev->ddev->dev); + kfree(data); + return r; }
/**