[PATCH] video: of_display_timing.h: include errno.h

[Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>]

If CONFIG_OF is not enabled, default of_get_display_timing() returns an
errno, so include the header.

Fixes: 422b67e0b31a ("videomode: provide dummy inline functions for !CONFIG_OF")
Suggested-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>
---
 include/video/of_display_timing.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/video/of_display_timing.h b/include/video/of_display_timing.h
index e1126a74882a5..eff166fdd81b9 100644
--- a/include/video/of_display_timing.h
+++ b/include/video/of_display_timing.h
@@ -8,6 +8,8 @@
 #ifndef __LINUX_OF_DISPLAY_TIMING_H
 #define __LINUX_OF_DISPLAY_TIMING_H
 
+#include <linux/errno.h>
+
 struct device_node;
 struct display_timing;
 struct display_timings;
-- 
2.37.0.rc0.161.g10f37bed90-goog