diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 552452a654a5..f186c20f636b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3106,24 +3106,36 @@ static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; - int idx, r; - int32_t value; + int idx, x, outsize, r, valuesize; + uint32_t values[16]; - if (size != 4 || *pos & 0x3) + if (size & 3 || *pos & 0x3) return -EINVAL; /* convert offset to sensor number */ idx = *pos >> 2; + valuesize = sizeof(values); if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor) - r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &value); + r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &values[0], &valuesize); else return -EINVAL; - if (!r) - r = put_user(value, (int32_t *)buf); + if (size > valuesize) + return -EINVAL; + + outsize = 0; + x = 0; + if (!r) { + while (size) { + r = put_user(values[x++], (int32_t *)buf); + buf += 4; + size -= 4; + outsize += 4; + } + } - return !r ? 4 : r; + return !r ? outsize : r; } static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf, |