regno is unsigned so it cannot be negative.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.ha...@samsung.com>
---
 drivers/video/fbdev/omap/omapfb_main.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/fbdev/omap/omapfb_main.c 
b/drivers/video/fbdev/omap/omapfb_main.c
index 1fb3ea3..393ae1b 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -276,11 +276,6 @@ static int _setcolreg(struct fb_info *info, u_int regno, 
u_int red, u_int green,
                if (r != 0)
                        break;
 
-               if (regno < 0) {
-                       r = -EINVAL;
-                       break;
-               }
-
                if (regno < 16) {
                        u16 pal;
                        pal = ((red >> (16 - var->red.length)) <<
-- 
1.9.1

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