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staging: usbip: fix shutdown problems.

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When shuting down the tcp_rx and tcp_tx threads first check if they are
not closed already (maybe because an error caused them to return).

Signed-off-by: Arjan Mels <arjan.mels@gmx.net>
Cc: Takahiro Hirofuchi <hirofuchi@users.sourceforge.net>
Cc: Max Vozeler <max@vozeler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arjan Mels 2011-04-05 20:24:56 +02:00 committed by Greg Kroah-Hartman
parent c996edcf1c
commit 2f8c4c5494
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/usbip/stub_dev.c
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@ -220,8 +220,10 @@ static void stub_shutdown_connection(struct usbip_device *ud)
}
/* 1. stop threads */
kthread_stop(ud->tcp_rx);
kthread_stop(ud->tcp_tx);
if (ud->tcp_rx && !task_is_dead(ud->tcp_rx))
kthread_stop(ud->tcp_rx);
if (ud->tcp_tx && !task_is_dead(ud->tcp_tx))
kthread_stop(ud->tcp_tx);
/* 2. close the socket */
/*