USB: option: reduce interrupt-urb logging verbosity
authorJohan Hovold <johan@kernel.org>
Tue, 29 Jul 2014 12:14:55 +0000 (14:14 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 5 Oct 2014 21:52:13 +0000 (14:52 -0700)
commit1305752116af06b387ccfc858d28672d84996706
tree69e889b758d25127176bd333aea3030ac4f19768
parent78107561549eafdcbf85415902b9db0d1d418718
USB: option: reduce interrupt-urb logging verbosity

commit f0e4cba2534cd88476dff920727c81350130f3c5 upstream.

Do not log normal interrupt-urb shutdowns as errors.

The option driver has always been logging any nonzero interrupt-urb
status as an error, including when the urb is killed during normal
operation.

Commit 9096f1fbba91 ("USB: usb_wwan: fix potential NULL-deref at
resume") moved the interrupt urb submission from port probe and release
to open and close, thus potentially increasing the number of these
false-positive error messages dramatically.

Reported-by: Ed Butler <ressy66@ausics.net>
Tested-by: Ed Butler <ressy66@ausics.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/option.c