tree 1a522a1fc4aa36b8ed75eecfb5e05f8fa67afead
parent d305394ee8c4132bcea0bb36fd6a360a415376bf
author Ladislav Michl <ladis@linux-mips.org> 1479492686 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1479724576 +0100

cdc-acm: handle read pipe errors

Read urbs are submitted back only on success, causing read pipe
running out of urbs after few errors. No more characters can
be read from tty device then until it is reopened and no errors
are reported.
Fix that by always submitting urbs back and clearing stall on
-EPIPE.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>