* [PATCH 3/3] iio: adc: hx711: remove unnecessary returns
@ 2019-09-07 10:18 Andreas Klinger
2019-09-10 0:34 ` Joe Perches
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Klinger @ 2019-09-07 10:18 UTC (permalink / raw)
To: jic23, knaack.h, lars, pmeerw; +Cc: linux-iio, linux-kernel
Optimize use of return in hx711_set_gain_for_channel().
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
---
drivers/iio/adc/hx711.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index c8686558429b..20c249f502c0 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -213,7 +213,7 @@ static int hx711_reset(struct hx711_data *hx711_data)
static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
{
- int ret;
+ int ret = 0;
if (chan == 0) {
if (hx711_data->gain_set == 32) {
@@ -224,8 +224,6 @@ static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
return ret;
ret = hx711_wait_for_ready(hx711_data);
- if (ret)
- return ret;
}
} else {
if (hx711_data->gain_set != 32) {
@@ -236,12 +234,10 @@ static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
return ret;
ret = hx711_wait_for_ready(hx711_data);
- if (ret)
- return ret;
}
}
- return 0;
+ return ret;
}
static int hx711_reset_read(struct hx711_data *hx711_data, int chan)
--
2.13.3
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH 3/3] iio: adc: hx711: remove unnecessary returns
2019-09-07 10:18 [PATCH 3/3] iio: adc: hx711: remove unnecessary returns Andreas Klinger
@ 2019-09-10 0:34 ` Joe Perches
0 siblings, 0 replies; 2+ messages in thread
From: Joe Perches @ 2019-09-10 0:34 UTC (permalink / raw)
To: Andreas Klinger, jic23, knaack.h, lars, pmeerw; +Cc: linux-iio, linux-kernel
On Sat, 2019-09-07 at 12:18 +0200, Andreas Klinger wrote:
> Optimize use of return in hx711_set_gain_for_channel().
I believe this change is not an optimization but
this change does make the code harder to read.
> diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
[]
> @@ -213,7 +213,7 @@ static int hx711_reset(struct hx711_data *hx711_data)
>
> static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
> {
> - int ret;
> + int ret = 0;
>
> if (chan == 0) {
> if (hx711_data->gain_set == 32) {
> @@ -224,8 +224,6 @@ static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
> return ret;
>
> ret = hx711_wait_for_ready(hx711_data);
> - if (ret)
> - return ret;
> }
> } else {
> if (hx711_data->gain_set != 32) {
> @@ -236,12 +234,10 @@ static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan)
> return ret;
>
> ret = hx711_wait_for_ready(hx711_data);
> - if (ret)
> - return ret;
> }
> }
>
> - return 0;
> + return ret;
> }
>
> static int hx711_reset_read(struct hx711_data *hx711_data, int chan)
^ permalink raw reply [flat|nested] 2+ messages in thread
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