[PATCH] fbdev: core: fix ubsan warning in pixel_to_pat

[Zsolt Kajtar]

It could be triggered on 32 bit big endian machines at 32 bpp in the
pattern realignment. In this case just return early as the result is
an identity.

Signed-off-by: Zsolt Kajtar <s...@c64.rulez.org>
---
 drivers/video/fbdev/core/fb_fillrect.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/core/fb_fillrect.h 
b/drivers/video/fbdev/core/fb_fillrect.h
index 66042e534..f366670a5 100644
--- a/drivers/video/fbdev/core/fb_fillrect.h
+++ b/drivers/video/fbdev/core/fb_fillrect.h
@@ -92,8 +92,7 @@ static unsigned long pixel_to_pat(int bpp, u32 color)
                pattern = pattern | pattern << bpp;
                break;
        default:
-               pattern = color;
-               break;
+               return color;
        }
 #ifndef __LITTLE_ENDIAN
        pattern <<= (BITS_PER_LONG % bpp);
-- 
2.30.2