OMAP: DSS2: remove non-zero check on variable r

Variable r is being initialized to zero, so the check of a non-zero
rv is redundant and can be removed.

It appears that the previous case statements set r to be -EINVAL
and the "Fallthrough" comment afterwards suggested it was going
to fall through to this non-zero check but won't because of the
break statement. Remove the confusion by removing the Fallthrough
comment too.

Addresses-Coverity: ("Logically dead code")
Fixes: b39a982ddecf ("OMAP: DSS2: omapfb driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191204152847.1435188-1-colin.king@canonical.com

diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index 8dfa915..836e7b1 100644 (file)
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -1154,16 +1154,12 @@ static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
                   r = fbdev->ctrl->setcolreg(regno, red, green, blue,
                   transp, update_hw_pal);
                   */
-               /* Fallthrough */
                r = -EINVAL;
                break;
        case OMAPFB_COLOR_RGB565:
        case OMAPFB_COLOR_RGB444:
        case OMAPFB_COLOR_RGB24P:
        case OMAPFB_COLOR_RGB24U:
-               if (r != 0)
-                       break;
-
                if (regno < 16) {
                        u32 pal;
                        pal = ((red >> (16 - var->red.length)) <<