drm/i915: [sparse] __iomem fixes for debugfs

These were mostly straight forward. No forced casting needed.

Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
[danvet: fix conflict with ringbuffer_data removal and drop the hunk
about the status page - that needs more care to fix up.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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 8c899a2237ff..54a10667fe82 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;
 }