linux-i2c.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] I2C: Fix i2c fail problem when a process is terminated by a signal on octeon in 3.8
@ 2013-04-18  7:40 송은봉
  2013-04-19 18:30 ` Wolfram Sang
  0 siblings, 1 reply; 2+ messages in thread
From: 송은봉 @ 2013-04-18  7:40 UTC (permalink / raw)
  To: wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA
  Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA


I rewrite my patch because the patch before i sent have many white space.
Thanks!
---
I've been debugging the abnormal operation of i2c on octeon.
If a process is terminated by signal in the middle of i2c operation,
next i2c read operation which is done by another process was failed.
So i changed to ignore signal in the middle of i2c operation.
After that the problem was not reproduced.

Signed-off-by: Eunbong Song <eunb.song@samsung.com>
---
 drivers/i2c/busses/i2c-octeon.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
index 935585e..b2e3259 100644
--- a/drivers/i2c/busses/i2c-octeon.c
+++ b/drivers/i2c/busses/i2c-octeon.c
@@ -183,7 +183,7 @@ static irqreturn_t octeon_i2c_isr(int irq, void *dev_id)
 	struct octeon_i2c *i2c = dev_id;
 
 	octeon_i2c_int_disable(i2c);
-	wake_up_interruptible(&i2c->queue);
+	wake_up(&i2c->queue);
 
 	return IRQ_HANDLED;
 }
@@ -206,9 +206,9 @@ static int octeon_i2c_wait(struct octeon_i2c *i2c)
 
 	octeon_i2c_int_enable(i2c);
 
-	result = wait_event_interruptible_timeout(i2c->queue,
-						  octeon_i2c_test_iflg(i2c),
-						  i2c->adap.timeout);
+	result = wait_event_timeout(i2c->queue,
+					octeon_i2c_test_iflg(i2c),
+					i2c->adap.timeout);
 
 	octeon_i2c_int_disable(i2c);
 
-- 
1.7.0.4

^ permalink raw reply related	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2013-04-19 18:30 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-04-18  7:40 [PATCH] I2C: Fix i2c fail problem when a process is terminated by a signal on octeon in 3.8 송은봉
2013-04-19 18:30 ` Wolfram Sang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).