iio: inkern: fix coding style warnings

Just cosmetics. No functional change intended...

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220715122903.332535-16-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index b667790b6df97d022cecdfc9ed4f977d3f3f8e1f..872fd5c241476eadb4ae4062ac3f59a61a0da970 100644 (file)
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -45,13 +45,13 @@ int iio_map_array_register(struct iio_dev *indio_dev, struct iio_map *maps)
        int i = 0, ret = 0;
        struct iio_map_internal *mapi;
 
-       if (maps == NULL)
+       if (!maps)
                return 0;
 
        mutex_lock(&iio_map_list_lock);
-       while (maps[i].consumer_dev_name != NULL) {
+       while (maps[i].consumer_dev_name) {
                mapi = kzalloc(sizeof(*mapi), GFP_KERNEL);
-               if (mapi == NULL) {
+               if (!mapi) {
                        ret = -ENOMEM;
                        goto error_ret;
                }
@@ -69,7 +69,6 @@ error_ret:
 }
 EXPORT_SYMBOL_GPL(iio_map_array_register);
 
-
 /*
  * Remove all map entries associated with the given iio device
  */
@@ -157,7 +156,7 @@ static int __fwnode_iio_channel_get(struct iio_channel *channel,
                return err;
 
        idev = bus_find_device_by_fwnode(&iio_bus_type, iiospec.fwnode);
-       if (idev == NULL) {
+       if (!idev) {
                fwnode_handle_put(iiospec.fwnode);
                return -EPROBE_DEFER;
        }
@@ -190,7 +189,7 @@ static struct iio_channel *fwnode_iio_channel_get(struct fwnode_handle *fwnode,
                return ERR_PTR(-EINVAL);
 
        channel = kzalloc(sizeof(*channel), GFP_KERNEL);
-       if (channel == NULL)
+       if (!channel)
                return ERR_PTR(-ENOMEM);
 
        err = __fwnode_iio_channel_get(channel, fwnode, index);
@@ -308,7 +307,7 @@ static struct iio_channel *fwnode_iio_channel_get_all(struct device *dev)
 
        /* NULL terminated array to save passing size */
        chans = kcalloc(nummaps + 1, sizeof(*chans), GFP_KERNEL);
-       if (chans == NULL)
+       if (!chans)
                return ERR_PTR(-ENOMEM);
 
        /* Search for FW matches */
@@ -333,7 +332,7 @@ static struct iio_channel *iio_channel_get_sys(const char *name,
        struct iio_channel *channel;
        int err;
 
-       if (name == NULL && channel_name == NULL)
+       if (!(name || channel_name))
                return ERR_PTR(-ENODEV);
 
        /* first find matching entry the channel map */
@@ -348,11 +347,11 @@ static struct iio_channel *iio_channel_get_sys(const char *name,
                break;
        }
        mutex_unlock(&iio_map_list_lock);
-       if (c == NULL)
+       if (!c)
                return ERR_PTR(-ENODEV);
 
        channel = kzalloc(sizeof(*channel), GFP_KERNEL);
-       if (channel == NULL) {
+       if (!channel) {
                err = -ENOMEM;
                goto error_no_mem;
        }
@@ -364,7 +363,7 @@ static struct iio_channel *iio_channel_get_sys(const char *name,
                        iio_chan_spec_from_name(channel->indio_dev,
                                                c->map->adc_channel_label);
 
-               if (channel->channel == NULL) {
+               if (!channel->channel) {
                        err = -EINVAL;
                        goto error_no_chan;
                }
@@ -456,7 +455,7 @@ struct iio_channel *iio_channel_get_all(struct device *dev)
        int mapind = 0;
        int i, ret;
 
-       if (dev == NULL)
+       if (!dev)
                return ERR_PTR(-EINVAL);
 
        chans = fwnode_iio_channel_get_all(dev);
@@ -484,7 +483,7 @@ struct iio_channel *iio_channel_get_all(struct device *dev)
 
        /* NULL terminated array to save passing size */
        chans = kcalloc(nummaps + 1, sizeof(*chans), GFP_KERNEL);
-       if (chans == NULL) {
+       if (!chans) {
                ret = -ENOMEM;
                goto error_ret;
        }
@@ -498,7 +497,7 @@ struct iio_channel *iio_channel_get_all(struct device *dev)
                chans[mapind].channel =
                        iio_chan_spec_from_name(chans[mapind].indio_dev,
                                                c->map->adc_channel_label);
-               if (chans[mapind].channel == NULL) {
+               if (!chans[mapind].channel) {
                        ret = -EINVAL;
                        goto error_free_chans;
                }
@@ -560,14 +559,14 @@ struct iio_channel *devm_iio_channel_get_all(struct device *dev)
 EXPORT_SYMBOL_GPL(devm_iio_channel_get_all);
 
 static int iio_channel_read(struct iio_channel *chan, int *val, int *val2,
-       enum iio_chan_info_enum info)
+                           enum iio_chan_info_enum info)
 {
        int unused;
        int vals[INDIO_MAX_RAW_ELEMENTS];
        int ret;
        int val_len = 2;
 
-       if (val2 == NULL)
+       if (!val2)
                val2 = &unused;
 
        if (!iio_channel_has_info(chan->channel, info))
@@ -579,9 +578,10 @@ static int iio_channel_read(struct iio_channel *chan, int *val, int *val2,
                                        vals, &val_len, info);
                *val = vals[0];
                *val2 = vals[1];
-       } else
+       } else {
                ret = chan->indio_dev->info->read_raw(chan->indio_dev,
                                        chan->channel, val, val2, info);
+       }
 
        return ret;
 }
@@ -592,7 +592,7 @@ int iio_read_channel_raw(struct iio_channel *chan, int *val)
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -611,7 +611,7 @@ int iio_read_channel_average_raw(struct iio_channel *chan, int *val)
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -625,7 +625,8 @@ err_unlock:
 EXPORT_SYMBOL_GPL(iio_read_channel_average_raw);
 
 static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
-       int raw, int *processed, unsigned int scale)
+                                                int raw, int *processed,
+                                                unsigned int scale)
 {
        int scale_type, scale_val, scale_val2;
        int offset_type, offset_val, offset_val2;
@@ -658,7 +659,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
        }
 
        scale_type = iio_channel_read(chan, &scale_val, &scale_val2,
-                                       IIO_CHAN_INFO_SCALE);
+                                     IIO_CHAN_INFO_SCALE);
        if (scale_type < 0) {
                /*
                 * If no channel scaling is available apply consumer scale to
@@ -703,19 +704,19 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
 }
 
 int iio_convert_raw_to_processed(struct iio_channel *chan, int raw,
-       int *processed, unsigned int scale)
+                                int *processed, unsigned int scale)
 {
        struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(chan->indio_dev);
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
 
        ret = iio_convert_raw_to_processed_unlocked(chan, raw, processed,
-                                                       scale);
+                                                   scale);
 err_unlock:
        mutex_unlock(&iio_dev_opaque->info_exist_lock);
 
@@ -730,7 +731,7 @@ int iio_read_channel_attribute(struct iio_channel *chan, int *val, int *val2,
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -756,7 +757,7 @@ int iio_read_channel_processed_scale(struct iio_channel *chan, int *val,
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -834,7 +835,7 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
        int type;
 
        ret = iio_read_avail_channel_attribute(chan, vals, &type, length,
-                                        IIO_CHAN_INFO_RAW);
+                                              IIO_CHAN_INFO_RAW);
 
        if (ret >= 0 && type != IIO_VAL_INT)
                /* raw values are assumed to be IIO_VAL_INT */
@@ -918,7 +919,7 @@ int iio_get_channel_type(struct iio_channel *chan, enum iio_chan_type *type)
        /* Need to verify underlying driver has not gone away */
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -945,7 +946,7 @@ int iio_write_channel_attribute(struct iio_channel *chan, int val, int val2,
        int ret;
 
        mutex_lock(&iio_dev_opaque->info_exist_lock);
-       if (chan->indio_dev->info == NULL) {
+       if (!chan->indio_dev->info) {
                ret = -ENODEV;
                goto err_unlock;
        }
@@ -979,9 +980,8 @@ unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan)
 }
 EXPORT_SYMBOL_GPL(iio_get_channel_ext_info_count);
 
-static const struct iio_chan_spec_ext_info *iio_lookup_ext_info(
-                                               const struct iio_channel *chan,
-                                               const char *attr)
+static const struct iio_chan_spec_ext_info *
+iio_lookup_ext_info(const struct iio_channel *chan, const char *attr)
 {
        const struct iio_chan_spec_ext_info *ext_info;