USB: core: return -EREMOTEIO on short usb_control_msg_recv()

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Return -EREMOTEIO instead of -EINVAL on short control transfers when
using the new usb_control_msg_recv() helper.

EINVAL is used to report invalid arguments (e.g. to the helper) and
should not be used for unrelated errors.

Many driver currently return -EIO on short control transfers but since
host-controller drivers already use -EREMOTEIO for short transfers
whenever the URB_SHORT_NOT_OK flag is set, let's use that here as well.

This also allows usb_control_msg_recv() to eventually use
URB_SHORT_NOT_OK without changing the return value again.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20201204085110.20055-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Hovold 2020-12-04 09:51:10 +01:00 • committed by Greg Kroah-Hartman

parent baf7df456b

commit 9dc9c8543a

1 changed files with 1 additions and 1 deletions

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drivers/usb/core/message.c

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