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authorWolfram Sang <wsa+renesas@sang-engineering.com>2018-08-24 16:52:45 +0200
committerWolfram Sang <wsa@the-dreams.de>2018-08-30 23:13:30 +0200
commit531db50170a3e6d113c968fe7a6dda8d55d02ede (patch)
tree3b82501f6551d3566d7243c8a405aa68f684b635
parent82fe39a6bc7b866fc3ffd838e3c5a4cadb328b04 (diff)
downloadlinux-stericsson-531db50170a3e6d113c968fe7a6dda8d55d02ede.tar.gz
i2c: sh_mobile: define start_ch() void as it only returns 0 anyhow
After various refactoring over the years, start_ch() doesn't return errno anymore, so make the function return void. This saves the error handling when calling it which in turn eases cleanup of resources of a future patch. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
-rw-r--r--drivers/i2c/busses/i2c-sh_mobile.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 279d0e5bd433..b965d52338ba 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -602,8 +602,8 @@ static void sh_mobile_i2c_xfer_dma(struct sh_mobile_i2c_data *pd)
dma_async_issue_pending(chan);
}
-static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
- bool do_init)
+static void start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
+ bool do_init)
{
if (do_init) {
/* Initialize channel registers */
@@ -627,7 +627,6 @@ static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
/* Enable all interrupts to begin with */
iic_wr(pd, ICIC, ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE);
- return 0;
}
static int poll_dte(struct sh_mobile_i2c_data *pd)
@@ -698,9 +697,7 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
pd->send_stop = i == num - 1 || msg->flags & I2C_M_STOP;
pd->stop_after_dma = false;
- err = start_ch(pd, msg, do_start);
- if (err)
- break;
+ start_ch(pd, msg, do_start);
if (do_start)
i2c_op(pd, OP_START, 0);