fbdev: newport: newport_*wait() return 0 on timeout
With a postfix decrement t reaches -1 on timeout which results in a
return of 0.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/video/newport.h b/include/video/newport.h
index 1f5ebea..001b935 100644
--- a/include/video/newport.h
+++ b/include/video/newport.h
@@ -453,7 +453,7 @@
{
int t = BUSY_TIMEOUT;
- while (t--)
+ while (--t)
if (!(regs->cset.status & NPORT_STAT_GBUSY))
break;
return !t;
@@ -463,7 +463,7 @@
{
int t = BUSY_TIMEOUT;
- while (t--)
+ while (--t)
if(!(regs->cset.status & NPORT_STAT_BBUSY))
break;
return !t;