diff options
| author | Tom St Denis <tom.stdenis@amd.com> | 2016-10-13 12:15:03 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-10-25 14:38:46 -0400 |
| commit | 5ecfb3b8fcb45b971a2f81a7a52d409a52b8b7d9 (patch) | |
| tree | 3d71921cfc319f148471b33e3d7fd6808c3d47df /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 273d7aa13c212964cbc725e637b07a13d1b765b4 (diff) | |
drm/amd/amdgpu: Fix debugfs wave reader
On non VI/CZ platforms it would not free
the grbm index lock.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 62c360435732..188b8e0d7bca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2958,13 +2958,14 @@ static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf, data[x++] = wave_read_ind(adev, 0x2378, 0x2379, simd, wave, 0x14); data[x++] = wave_read_ind(adev, 0x2378, 0x2379, simd, wave, 0x1A); data[x++] = wave_read_ind(adev, 0x2378, 0x2379, simd, wave, 0x1B); - } else { - return -EINVAL; } amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); mutex_unlock(&adev->grbm_idx_mutex); + if (!x) + return -EINVAL; + while (size && (*pos < x * 4)) { uint32_t value; |