From: Chuansheng Liu <chuansheng.liu@intel.com>
To: FlorianSchandinat@gmx.de
Cc: linux-kernel@vger.kernel.org, chuansheng.liu@intel.com
Subject: [PATCH 6/7] mx3fb: Fix the usage of wait_for_completion_timeout
Date: Wed, 07 Nov 2012 01:33:14 +0800 [thread overview]
Message-ID: <1352223194.15558.1601.camel@cliu38-desktop-build> (raw)
In-Reply-To: <1352223097.15558.1599.camel@cliu38-desktop-build>
The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.
So the condition "ret < 0" or "ret >= 0" is pointless.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
---
drivers/video/mx3fb.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index ce1d452..88bf368 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -1110,12 +1110,11 @@ static int mx3fb_pan_display(struct fb_var_screeninfo *var,
enable_irq(mx3_fbi->idmac_channel->eof_irq);
ret = wait_for_completion_timeout(&mx3_fbi->flip_cmpl, HZ / 10);
- if (ret <= 0) {
+ if (ret == 0) {
mutex_unlock(&mx3_fbi->mutex);
- dev_info(fbi->device, "Panning failed due to %s\n", ret < 0 ?
- "user interrupt" : "timeout");
+ dev_info(fbi->device, "Panning failed due to timeout\n");
disable_irq(mx3_fbi->idmac_channel->eof_irq);
- return ret ? : -ETIMEDOUT;
+ return -ETIMEDOUT;
}
mx3_fbi->cur_ipu_buf = !mx3_fbi->cur_ipu_buf;
--
1.7.0.4
next prev parent reply other threads:[~2012-11-06 8:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-06 17:18 [PATCH 1/7] I2c-nomadik: Fix the usage of wait_for_completion_timeout Chuansheng Liu
2012-11-06 17:21 ` [PATCH 2/7] OMAPDSS: DISPC: " Chuansheng Liu
2012-11-06 11:30 ` Tomi Valkeinen
2012-11-06 17:22 ` [PATCH 3/7] OMAPDSS: APPLY: " Chuansheng Liu
2012-11-06 11:31 ` Tomi Valkeinen
2012-11-06 17:28 ` [PATCH 4/7] wlcore: " Chuansheng Liu
2012-11-06 17:31 ` [PATCH 5/7] can: janz-ican3: " Chuansheng Liu
2012-11-06 11:43 ` Marc Kleine-Budde
2012-11-06 17:33 ` Chuansheng Liu [this message]
2012-11-06 17:36 ` [PATCH 7/7] IB/srpt: " Chuansheng Liu
2012-11-16 18:23 ` [PATCH 4/7] wlcore: " Luciano Coelho
2012-11-12 17:26 ` [PATCH 1/7] I2c-nomadik: " Wolfram Sang
2012-11-13 1:21 ` Liu, Chuansheng
2012-11-13 7:58 ` Wolfram Sang
2012-11-13 8:00 ` Liu, Chuansheng
[not found] ` <CACRpkdYekQF5111NSNSPeaHdxgS_gpXkCjqT1n-n1_iAdDXbSg@mail.gmail.com>
2012-11-15 8:49 ` Fwd: " Srinidhi Kasagar
2012-11-15 9:29 ` Wolfram Sang
2012-11-15 9:57 ` Srinidhi Kasagar
2012-11-15 10:18 ` Wolfram Sang
2012-11-15 11:18 ` Srinidhi Kasagar
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