diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 8c899a2237f..54a10667fe8 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1290,17 +1290,25 @@ static int i915_opregion(struct seq_file *m, void *unused) struct drm_device *dev = node->minor->dev; drm_i915_private_t *dev_priv = dev->dev_private; struct intel_opregion *opregion = &dev_priv->opregion; + void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL); int ret; + if (data == NULL) + return -ENOMEM; + ret = mutex_lock_interruptible(&dev->struct_mutex); if (ret) - return ret; + goto out; - if (opregion->header) - seq_write(m, opregion->header, OPREGION_SIZE); + if (opregion->header) { + memcpy_fromio(data, opregion->header, OPREGION_SIZE); + seq_write(m, data, OPREGION_SIZE); + } mutex_unlock(&dev->struct_mutex); +out: + kfree(data); return 0; } |