lkml.org 
[lkml]   [2011]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] i2c-eg20t : Fix the issue of Combined R/W transfer mode
Date
issue-1
In case combined transfer mode fails halfway, the processing must be stopped halfway.
However currently, the processing is continued.
This patch breaks the processing.

issue-2
Currently, pch_i2c_xfer returns read/write size at that time.
However pch_i2c_xfer must return the number of messages to be read/written.
This patch modifies correctly.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
---
drivers/i2c/busses/i2c-eg20t.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index b2f94dc..4bc272e 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -672,7 +672,7 @@ static s32 pch_i2c_xfer(struct i2c_adapter *i2c_adap,
/* transfer not completed */
adap->pch_i2c_xfer_in_progress = true;

- for (i = 0; i < num; i++) {
+ for (i = 0; i < num && ret >= 0; i++) {
pmsg = &msgs[i];
pmsg->flags |= adap->pch_buff_mode_en;
status = pmsg->flags;
@@ -698,7 +698,7 @@ static s32 pch_i2c_xfer(struct i2c_adapter *i2c_adap,

mutex_unlock(&pch_mutex);

- return ret;
+ return (ret < 0) ? ret : num;
}

/**
--
1.7.4.4


\
 
 \ /
  Last update: 2011-06-23 09:19    [W:0.253 / U:2.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site