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 601caa88c0928cb818c6af27cbb9f25c0a4bebf2..c2e211a7a508dabbf7001db1d7a9b402674a54cd 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;
 }