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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>
This commit is contained in:
Tom St Denis 2016-10-13 12:15:03 -04:00 committed by Alex Deucher
parent 273d7aa13c
commit 5ecfb3b8fc
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -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;