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scsi: drivers: base: Propagate errors through the transport component 

The transport registration may fail.  Make sure the errors are propagated
to the callers.

Link: https://lore.kernel.org/r/20200106185817.640331-3-krisman@collabora.com
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
alistair/sensors
Gabriel Krisman Bertazi 2020-01-06 13:58:16 -05:00 committed by Martin K. Petersen
parent 7c1ef33870
commit cd7ea70bb0
2 changed files with 11 additions and 6 deletions
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11
drivers/base/transport_class.c
View File

@ -30,6 +30,10 @@
#include <linux/attribute_container.h>
#include <linux/transport_class.h>
static int transport_remove_classdev(struct attribute_container *cont,
struct device *dev,
struct device *classdev);
/**
* transport_class_register - register an initial transport class
*
@ -172,10 +176,11 @@ static int transport_add_class_device(struct attribute_container *cont,
* routine is simply a trigger point used to add the device to the
* system and register attributes for it.
*/
void transport_add_device(struct device *dev)
int transport_add_device(struct device *dev)
{
attribute_container_device_trigger(dev, transport_add_class_device);
return attribute_container_device_trigger_safe(dev,
transport_add_class_device,
transport_remove_classdev);
}
EXPORT_SYMBOL_GPL(transport_add_device);

6
include/linux/transport_class.h
View File

@ -62,16 +62,16 @@ struct transport_container {
container_of(x, struct transport_container, ac)
void transport_remove_device(struct device *);
void transport_add_device(struct device *);
int transport_add_device(struct device *);
void transport_setup_device(struct device *);
void transport_configure_device(struct device *);
void transport_destroy_device(struct device *);
static inline void
static inline int
transport_register_device(struct device *dev)
{
transport_setup_device(dev);
transport_add_device(dev);
return transport_add_device(dev);
}
static inline void