iio get rid of unneccessary error_ret

Get rid of obsolete uses of goto error_ret and some empty lines.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

5 files changed, 21 insertions, 40 deletions

diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 2d9c6f8c06db..eb46e728aa2e 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -46,10 +46,8 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
         struct iio_channel *chan;
 
         cb_buff = kzalloc(sizeof(*cb_buff), GFP_KERNEL);
-        if (cb_buff == NULL) {
-                ret = -ENOMEM;
-                goto error_ret;
-        }
+        if (cb_buff == NULL)
+                return ERR_PTR(-ENOMEM);
 
         iio_buffer_init(&cb_buff->buffer);
 
@@ -91,7 +89,6 @@ error_release_channels:
         iio_channel_release_all(cb_buff->channels);
 error_free_cb_buff:
         kfree(cb_buff);
-error_ret:
         return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(iio_channel_get_all_cb);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index c67d83bdc8f0..e108f2a9d827 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -264,7 +264,7 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
                                      &indio_dev->dev,
                                      &buffer->scan_el_dev_attr_list);
         if (ret)
-                goto error_ret;
+                return ret;
         attrcount++;
         ret = __iio_add_chan_devattr("type",
                                      chan,
@@ -275,7 +275,7 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
                                      &indio_dev->dev,
                                      &buffer->scan_el_dev_attr_list);
         if (ret)
-                goto error_ret;
+                return ret;
         attrcount++;
         if (chan->type != IIO_TIMESTAMP)
                 ret = __iio_add_chan_devattr("en",
@@ -296,10 +296,9 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
                                              &indio_dev->dev,
                                              &buffer->scan_el_dev_attr_list);
         if (ret)
-                goto error_ret;
+                return ret;
         attrcount++;
         ret = attrcount;
-error_ret:
         return ret;
 }
 
@@ -553,13 +552,13 @@ static int __iio_update_buffers(struct iio_dev *indio_dev,
                 if (indio_dev->setup_ops->predisable) {
                         ret = indio_dev->setup_ops->predisable(indio_dev);
                         if (ret)
-                                goto error_ret;
+                                return ret;
                 }
                 indio_dev->currentmode = INDIO_DIRECT_MODE;
                 if (indio_dev->setup_ops->postdisable) {
                         ret = indio_dev->setup_ops->postdisable(indio_dev);
                         if (ret)
-                                goto error_ret;
+                                return ret;
                 }
         }
         /* Keep a copy of current setup to allow roll back */
@@ -613,7 +612,7 @@ static int __iio_update_buffers(struct iio_dev *indio_dev,
                         else {
                                 kfree(compound_mask);
                                 ret = -EINVAL;
-                                goto error_ret;
+                                return ret;
                         }
                 }
         } else {
@@ -696,13 +695,10 @@ error_run_postdisable:
         if (indio_dev->setup_ops->postdisable)
                 indio_dev->setup_ops->postdisable(indio_dev);
 error_remove_inserted:
-
         if (insert_buffer)
                 iio_buffer_deactivate(insert_buffer);
         indio_dev->active_scan_mask = old_mask;
         kfree(compound_mask);
-error_ret:
-
         return ret;
 }
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index acc911a836ca..a85b66081fae 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -692,10 +692,8 @@ int __iio_add_chan_devattr(const char *postfix,
         struct iio_dev_attr *iio_attr, *t;
 
         iio_attr = kzalloc(sizeof(*iio_attr), GFP_KERNEL);
-        if (iio_attr == NULL) {
-                ret = -ENOMEM;
-                goto error_ret;
-        }
+        if (iio_attr == NULL)
+                return -ENOMEM;
         ret = __iio_device_attr_init(&iio_attr->dev_attr,
                                      postfix, chan,
                                      readfunc, writefunc, shared_by);
@@ -720,7 +718,6 @@ error_device_attr_deinit:
         __iio_device_attr_deinit(&iio_attr->dev_attr);
 error_iio_dev_attr_free:
         kfree(iio_attr);
-error_ret:
         return ret;
 }
 
@@ -1134,7 +1131,7 @@ int iio_device_register(struct iio_dev *indio_dev)
         if (ret) {
                 dev_err(indio_dev->dev.parent,
                         "Failed to register debugfs interfaces\n");
-                goto error_ret;
+                return ret;
         }
         ret = iio_device_register_sysfs(indio_dev);
         if (ret) {
@@ -1175,7 +1172,6 @@ error_free_sysfs:
         iio_device_unregister_sysfs(indio_dev);
 error_unreg_debugfs:
         iio_device_unregister_debugfs(indio_dev);
-error_ret:
         return ret;
 }
 EXPORT_SYMBOL(iio_device_register);
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index c9c1419fe6e0..2e6f8e026fab 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -366,32 +366,31 @@ static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
                 ret = iio_device_add_event(indio_dev, chan, i, type, dir,
                         IIO_SEPARATE, &chan->event_spec[i].mask_separate);
                 if (ret < 0)
-                        goto error_ret;
+                        return ret;
                 attrcount += ret;
 
                 ret = iio_device_add_event(indio_dev, chan, i, type, dir,
                         IIO_SHARED_BY_TYPE,
                         &chan->event_spec[i].mask_shared_by_type);
                 if (ret < 0)
-                        goto error_ret;
+                        return ret;
                 attrcount += ret;
 
                 ret = iio_device_add_event(indio_dev, chan, i, type, dir,
                         IIO_SHARED_BY_DIR,
                         &chan->event_spec[i].mask_shared_by_dir);
                 if (ret < 0)
-                        goto error_ret;
+                        return ret;
                 attrcount += ret;
 
                 ret = iio_device_add_event(indio_dev, chan, i, type, dir,
                         IIO_SHARED_BY_ALL,
                         &chan->event_spec[i].mask_shared_by_all);
                 if (ret < 0)
-                        goto error_ret;
+                        return ret;
                 attrcount += ret;
         }
         ret = attrcount;
-error_ret:
         return ret;
 }
 
@@ -440,10 +439,8 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 
         indio_dev->event_interface =
                 kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
-        if (indio_dev->event_interface == NULL) {
-                ret = -ENOMEM;
-                goto error_ret;
-        }
+        if (indio_dev->event_interface == NULL)
+                return -ENOMEM;
 
         INIT_LIST_HEAD(&indio_dev->event_interface->dev_attr_list);
 
@@ -489,8 +486,6 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 error_free_setup_event_lines:
         iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
         kfree(indio_dev->event_interface);
-error_ret:
-
         return ret;
 }
 
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 766fab24b720..3383b025f62e 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -62,10 +62,9 @@ int iio_trigger_register(struct iio_trigger *trig_info)
         int ret;
 
         trig_info->id = ida_simple_get(&iio_trigger_ida, 0, 0, GFP_KERNEL);
-        if (trig_info->id < 0) {
-                ret = trig_info->id;
-                goto error_ret;
-        }
+        if (trig_info->id < 0)
+                return trig_info->id;
+
         /* Set the name used for the sysfs directory etc */
         dev_set_name(&trig_info->dev, "trigger%ld",
                      (unsigned long) trig_info->id);
@@ -83,7 +82,6 @@ int iio_trigger_register(struct iio_trigger *trig_info)
 
 error_unregister_id:
         ida_simple_remove(&iio_trigger_ida, trig_info->id);
-error_ret:
         return ret;
 }
 EXPORT_SYMBOL(iio_trigger_register);
@@ -234,13 +232,12 @@ static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
         if (trig->ops && trig->ops->set_trigger_state && no_other_users) {
                 ret = trig->ops->set_trigger_state(trig, false);
                 if (ret)
-                        goto error_ret;
+                        return ret;
         }
         iio_trigger_put_irq(trig, pf->irq);
         free_irq(pf->irq, pf);
         module_put(pf->indio_dev->info->driver_module);
 
-error_ret:
         return ret;
 }