[PATCH] i915, debugfs: Fix uninitialized warning

[Borislav Petkov]

From: Borislav Petkov <b...@suse.de>

gcc complains that:

drivers/gpu/drm/i915/i915_debugfs.c: In function ?display_crc_ctl_write?:
drivers/gpu/drm/i915/i915_debugfs.c:2393:2: warning: ?val? may be used 
uninitialized in this function [-Wuninitialized]
drivers/gpu/drm/i915/i915_debugfs.c:2350:6: note: ?val? was declared here

but it can't see that we're going to use val only in the success case.
So shut it up.

Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: David Airlie <airlied at linux.ie>
Cc: intel-gfx at lists.freedesktop.org
Cc: dri-devel at lists.freedesktop.org
Signed-off-by: Borislav Petkov <bp at suse.de>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index 6ed45a984230..1191aa47adc9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2347,7 +2347,7 @@ static int pipe_crc_set_source(struct drm_device *dev, 
enum pipe pipe,
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
-       u32 val;
+       u32 val = 0; /* shut up gcc */
        int ret;

        if (pipe_crc->source == source)
-- 
1.8.4