From: Roel Kluin <roel.kluin@gmail.com>
To: josephchan@via.com.tw
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-fbdev-devel@lists.sourceforge.net
Subject: [PATCH] viafb: returns 0 two too early.
Date: Wed, 25 Feb 2009 14:21:07 +0100 [thread overview]
Message-ID: <49A545C3.5060801@gmail.com> (raw)
Otherwise this will already return 0 if iteration MAXLOOP-2 occurs in the first
loop.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
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 viafb_wait_engine_idle(void)
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;
}
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reply other threads:[~2009-02-25 13:21 UTC|newest]
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