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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2018-08-24 16:52:45 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-08-30 23:13:30 +0200 |
| commit | 531db50170a3e6d113c968fe7a6dda8d55d02ede (patch) | |
| tree | 3b82501f6551d3566d7243c8a405aa68f684b635 /drivers/i2c/busses/i2c-sh_mobile.c | |
| parent | i2c: refactor function to release a DMA safe buffer (diff) | |
| download | linux-531db50170a3e6d113c968fe7a6dda8d55d02ede.tar.xz linux-531db50170a3e6d113c968fe7a6dda8d55d02ede.zip | |
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>
Diffstat (limited to 'drivers/i2c/busses/i2c-sh_mobile.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-sh_mobile.c | 9 |
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); |