Re: [PATCH] cleanup ti-soc-thermal

Nishanth Menon
2015-01-03T17:48:11Z

On 12:19-20150103, Pavel Machek wrote:
> Simplify code by removing goto's where they point to simple return.
>
> Avoid confusing |= on error values.

Please split these up into chunks of related changes. there is white
space and quiet a few other changes all mixed in.

Also please cc linux-omap mailing list as well to get adequate audience.

>
> Correct whitespace.
>
> Signed-off-by: Pavel Machek <pavel@ucw.cz>
>
> diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> index 634b6ce..3b4e72f 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
> @@ -263,18 +264,13 @@ static
> int ti_bandgap_adc_to_mcelsius(struct ti_bandgap *bgp, int adc_val, int *t)
> {
> const struct ti_bandgap_data *conf = bgp->conf;
> - int ret = 0;
>
> /* look up for temperature in the table and return the temperature */
> - if (adc_val < conf->adc_start_val || adc_val > conf->adc_end_val) {
> - ret = -ERANGE;
> - goto exit;
> - }
> + if (adc_val < conf->adc_start_val || adc_val > conf->adc_end_val)
> + return -ERANGE;
>
> *t = bgp->conf->conv_table[adc_val - conf->adc_start_val];
> -
> -exit:
> - return ret;
> + return 0;
> }
>
> /**
> @@ -295,16 +291,14 @@ int ti_bandgap_mcelsius_to_adc(struct ti_bandgap *bgp, long temp, int *adc)
> {
> const struct ti_bandgap_data *conf = bgp->conf;
> const int *conv_table = bgp->conf->conv_table;
> - int high, low, mid, ret = 0;
> + int high, low, mid;
>
> low = 0;
> high = conf->adc_end_val - conf->adc_start_val;
> mid = (high + low) / 2;
>
> - if (temp < conv_table[low] || temp > conv_table[high]) {
> - ret = -ERANGE;
> - goto exit;
> - }
> + if (temp < conv_table[low] || temp > conv_table[high])
> + return -ERANGE;
>
> while (low < high) {
> if (temp < conv_table[mid])
> @@ -315,9 +309,7 @@ int ti_bandgap_mcelsius_to_adc(struct ti_bandgap *bgp, long temp, int *adc)
> }
>
> *adc = conf->adc_start_val + low;
> -
> -exit:
> - return ret;
> + return 0;
> }
>
> /**
> @@ -343,13 +335,11 @@ int ti_bandgap_add_hyst(struct ti_bandgap *bgp, int adc_val, int hyst_val,
> */
> ret = ti_bandgap_adc_to_mcelsius(bgp, adc_val, &temp);
> if (ret < 0)
> - goto exit;
> + return ret;
>
> temp += hyst_val;
>
> ret = ti_bandgap_mcelsius_to_adc(bgp, temp, sum);
> -
> -exit:
> return ret;
> }
>
> @@ -468,22 +458,18 @@ exit:
> */
> static inline int ti_bandgap_validate(struct ti_bandgap *bgp, int id)
> {
> - int ret = 0;
> -
> if (!bgp || IS_ERR(bgp)) {
> pr_err("%s: invalid bandgap pointer\n", __func__);
> - ret = -EINVAL;
> - goto exit;
> + return -EINVAL;
> }
>
> if ((id < 0) || (id >= bgp->conf->sensor_count)) {
> dev_err(bgp->dev, "%s: sensor id out of range (%d)\n",
> __func__, id);
> - ret = -ERANGE;
> + return -ERANGE;
> }
>
> -exit:
> - return ret;
> + return 0;
> }
>
> /**
> @@ -511,12 +497,10 @@ static int _ti_bandgap_write_threshold(struct ti_bandgap *bgp, int id, int val,
>
> ret = ti_bandgap_validate(bgp, id);
> if (ret)
> - goto exit;
> + return ret;
>
> - if (!TI_BANDGAP_HAS(bgp, TALERT)) {
> - ret = -ENOTSUPP;
> - goto exit;
> - }
> + if (!TI_BANDGAP_HAS(bgp, TALERT))
> + return -ENOTSUPP;
>
> ts_data = bgp->conf->sensors[id].ts_data;
> tsr = bgp->conf->sensors[id].registers;
> @@ -529,17 +513,15 @@ static int _ti_bandgap_write_threshold(struct ti_bandgap *bgp, int id, int val,
> }
>
> if (ret)
> - goto exit;
> + return ret;
>
> ret = ti_bandgap_mcelsius_to_adc(bgp, val, &adc_val);
> if (ret < 0)
> - goto exit;
> + return ret;
>
> spin_lock(&bgp->lock);
> ret = ti_bandgap_update_alert_threshold(bgp, id, adc_val, hot);
> spin_unlock(&bgp->lock);
> -
> -exit:
> return ret;
> }
>
> @@ -582,7 +564,7 @@ static int _ti_bandgap_read_threshold(struct ti_bandgap *bgp, int id,
>
> temp = ti_bandgap_readl(bgp, tsr->bgap_threshold);
> temp = (temp & mask) >> __ffs(mask);
> - ret |= ti_bandgap_adc_to_mcelsius(bgp, temp, &temp);
> + ret = ti_bandgap_adc_to_mcelsius(bgp, temp, &temp);
> if (ret) {
> dev_err(bgp->dev, "failed to read thot\n");
> ret = -EIO;
> @@ -1220,11 +1222,10 @@ int ti_bandgap_probe(struct platform_device *pdev)
> goto free_irqs;
> }
>
> - bgp->div_clk = clk_get(NULL, bgp->conf->div_ck_name);
> + bgp->div_clk = clk_get(NULL, bgp->conf->div_ck_name);
> ret = IS_ERR(bgp->div_clk);
> if (ret) {
> - dev_err(&pdev->dev,
> - "failed to request div_ts_ck clock ref\n");
> + dev_err(&pdev->dev, "failed to request div_ts_ck clock ref\n");
> ret = PTR_ERR(bgp->div_clk);
> goto free_irqs;
> }
> diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
> index 5fd0386..c62a6de 100644
> --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
> +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
> @@ -76,7 +76,7 @@ static inline int ti_thermal_hotspot_temperature(int t, int s, int c)
> }
>
> /* thermal zone ops */
> -/* Get temperature callback function for thermal zone*/
> +/* Get temperature callback function for thermal zone */
> static inline int __ti_thermal_get_temp(void *devdata, long *temp)
> {
> struct thermal_zone_device *pcb_tz = NULL;
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
> --
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--
Regards,
Nishanth Menon