viafb: returns 0 two too early
Otherwise this will already return 0 if iteration MAXLOOP-2 occurs in the
first loop.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Joseph Chan <josephchan@via.com.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/via/accel.c b/drivers/video/via/accel.c
index 632523f..45c54bf 100644
--- a/drivers/video/via/accel.c
+++ b/drivers/video/via/accel.c
@@ -267,13 +267,17 @@
int loop = 0;
while (!(readl(viaparinfo->io_virt + VIA_REG_STATUS) &
- VIA_VR_QUEUE_BUSY) && (loop++ < MAXLOOP))
+ VIA_VR_QUEUE_BUSY) && (loop < MAXLOOP)) {
+ loop++;
cpu_relax();
+ }
while ((readl(viaparinfo->io_virt + VIA_REG_STATUS) &
(VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY)) &&
- (loop++ < MAXLOOP))
+ (loop < MAXLOOP)) {
+ loop++;
cpu_relax();
+ }
return loop >= MAXLOOP;
}