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dm: usb: Make usb_get_bus easier to use for callers

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Make usb_get_bus easier to use for callers, by directly returning the bus
rather then returning it via a pass-by-ref argument.

This also removes the error checking from the current callers, as
we already have an assert() for bus not being NULL in usb_get_bus().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Hans de Goede
2015-05-05 11:54:31 +02:00
committed by Simon Glass
parent 134692af13
commit f78a5c0774
2 changed files with 7 additions and 17 deletions
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7
include/usb.h
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@@ -742,11 +742,10 @@ int usb_scan_device(struct udevice *parent, int port,
* will be a device with uclass UCLASS_USB.
*
* @dev: Device to check
* @busp: Returns bus, or NULL if not found
* @return 0 if OK, -EXDEV is somehow this bus does not have a controller (this
* indicates a critical error in the USB stack
* @return The bus, or NULL if not found (this indicates a critical error in
* the USB stack
*/
int usb_get_bus(struct udevice *dev, struct udevice **busp);
struct udevice *usb_get_bus(struct udevice *dev);
/**
* usb_select_config() - Set up a device ready for use