drm/i915: Fix context locking in debugfs

This goes all the way back to the introduction of this debugfs file,
even though back then no locking really was required. None of the
intermediate patches fixed this.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 2e5f76a585ef0b8612e5a24af168b102c8e7969a..538b83559593d63509776046bc50d782ebead607 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1721,7 +1721,7 @@ static int i915_context_status(struct seq_file *m, void *unused)
        struct intel_context *ctx;
        int ret, i;
 
-       ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+       ret = mutex_lock_interruptible(&dev->struct_mutex);
        if (ret)
                return ret;
 
@@ -1751,7 +1751,7 @@ static int i915_context_status(struct seq_file *m, void *unused)
                seq_putc(m, '\n');
        }
 
-       mutex_unlock(&dev->mode_config.mutex);
+       mutex_unlock(&dev->struct_mutex);
 
        return 0;
 }