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Commit 60678b60 authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
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USB: add helper to convert USB error codes 



This converts error codes specific to USB to generic error codes
that can be returned to user space. Tests showed that it is so small
that it is better inlined.

Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 1bae4ce2

drivers/usb/core/usb.h

+13 −0
Original line number Diff line number Diff line
@@ -122,6 +122,19 @@ static inline int is_usb_device_driver(struct device_driver *drv) 
			for_devices;

}



/* translate USB error codes to codes user space understands */

static inline int usb_translate_errors(int error_code)

{

	switch (error_code) {

	case 0:

	case -ENOMEM:

	case -ENODEV:

		return error_code;

	default:

		return -EIO;

	}

}





/* for labeling diagnostics */

extern const char *usbcore_name;