linux-kernel - [PATCH] Video: fbdev: Remove impossible condition.

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Date:   Fri, 11 Nov 2016 17:16:33 +0530
From:   Shailendra Verma <shailendra.v@...sung.com>
To:     Tomi Valkeinen <tomi.valkeinen@...com>,
        Michal Hocko <mhocko@...e.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org,
        Shailendra Verma <shailendra.v@...sung.com>,
        Shailendra Verma <shailendra.capricorn@...il.com>
Cc:     vidushi.koul@...sung.com
Subject: [PATCH] Video: fbdev: Remove impossible condition.

xoffset and yoffset of struct fb_var_screeninfo are unsigned and so
they can never be less than 0.

Signed-off-by: Shailendra Verma <shailendra.v@...sung.com>
---
 drivers/video/fbdev/pvr2fb.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index a2564ab..23ada1f 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -460,13 +460,11 @@ static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	set_color_bitfields(var);
 
 	if (var->vmode & FB_VMODE_YWRAP) {
-		if (var->xoffset || var->yoffset < 0 ||
-		    var->yoffset >= var->yres_virtual) {
+		if (var->yoffset >= var->yres_virtual) {
 			var->xoffset = var->yoffset = 0;
 		} else {
 			if (var->xoffset > var->xres_virtual - var->xres ||
-			    var->yoffset > var->yres_virtual - var->yres ||
-			    var->xoffset < 0 || var->yoffset < 0)
+			    var->yoffset > var->yres_virtual - var->yres)
 				var->xoffset = var->yoffset = 0;
 		}
 	} else {
-- 
1.7.9.5