staging: comedi: drivers: fix return value of comedi_load_firmware()

Some of the callback functions that upload the firmware in the comedi
drivers return a positive value indicating the number of bytes sent
to the device. Detect this condition and just return '0' to indicate
a successful upload.

Reported-by: Bernd Porr <mail@berndporr.me.uk>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-12-10 16:31:25 -07:00 committed by Greg Kroah-Hartman
parent 0283f7a100
commit c6236c0ce3

View File

@ -446,7 +446,7 @@ int comedi_load_firmware(struct comedi_device *dev,
release_firmware(fw);
}
return ret;
return ret < 0 ? ret : 0;
}
EXPORT_SYMBOL_GPL(comedi_load_firmware);