On Thu, 2015-05-28 at 23:02 +0200, Julia Lawall wrote:
> From: Julia Lawall
>
> Delete jump to a label on the next line, when that label is not
> used elsewhere.
Seems sensible but:
> diff --git a/drivers/media/usb/airspy/airspy.c
> b/drivers/media/usb/airspy/airspy.c
[]
> @@ -937,9 +937,6 @@ static int airspy_set_if_gain(struct airspy *s)
> ret = airspy_ctrl_msg(s, CMD_SET_VGA_GAIN, 0, s->if_gain->val,
> &u8tmp, 1);
> if (ret)
> - goto err;
> -err:
> - if (ret)
> dev_dbg(s->dev, "failed=%d\n", ret);
>
> return ret;
Ideally the function above this should also be modified
do drop the unnecessary double test of ret
static int airspy_set_mixer_gain(struct airspy *s)
{
int ret;
u8 u8tmp;
dev_dbg(s->dev, "mixer auto=%d->%d val=%d->%d\n",
s->mixer_gain_auto->cur.val, s->mixer_gain_auto->val,
s->mixer_gain->cur.val, s->mixer_gain->val);
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_AGC, 0, s->mixer_gain_auto->val,
&u8tmp, 1);
if (ret)
goto err;
if (s->mixer_gain_auto->val == false) {
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_GAIN, 0,
s->mixer_gain->val, &u8tmp, 1);
if (ret)
goto err;
}
err:
if (ret)
dev_dbg(s->dev, "failed=%d\n", ret);
return ret;
}
These could become something like:
static int airspy_set_mixer_gain(struct airspy *s)
{
int ret;
u8 u8tmp;
dev_dbg(s->dev, "mixer auto=%d->%d val=%d->%d\n",
s->mixer_gain_auto->cur.val, s->mixer_gain_auto->val,
s->mixer_gain->cur.val, s->mixer_gain->val);
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_AGC, 0, s->mixer_gain_auto->val,
&u8tmp, 1);
if (ret)
goto err;
if (s->mixer_gain_auto->val == false) {
ret = airspy_ctrl_msg(s, CMD_SET_MIXER_GAIN, 0,
s->mixer_gain->val, &u8tmp, 1);
if (ret)
goto err;
}
return 0;
err:
dev_dbg(s->dev, "failed=%d\n", ret);
return ret;
}
--
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