gbefb: unsigned var->pixclock cannot be less than 0
unsigned var->pixclock cannot be less than 0
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index f89c3cc..fe5b519 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -912,6 +912,7 @@
{
unsigned int line_length;
struct gbe_timing_info timing;
+ int ret;
/* Limit bpp to 8, 16, and 32 */
if (var->bits_per_pixel <= 8)
@@ -930,8 +931,10 @@
var->grayscale = 0; /* No grayscale for now */
- if ((var->pixclock = compute_gbe_timing(var, &timing)) < 0)
- return(-EINVAL);
+ ret = compute_gbe_timing(var, &timing);
+ var->pixclock = ret;
+ if (ret < 0)
+ return -EINVAL;
/* Adjust virtual resolution, if necessary */
if (var->xres > var->xres_virtual || (!ywrap && !ypan))