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authorArjan Mels <arjan.mels@gmx.net>2011-04-05 20:24:56 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-06 15:51:13 -0700
commit2f8c4c5494c2589e6cb9a62f399e61a1c4c2378d (patch)
tree5fc684d749f0ae5bd03221c5f4cc183979a81d60
parentc996edcf1c451b81740abbcca5257ed7e353fcc6 (diff)
staging: usbip: fix shutdown problems.
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>
-rw-r--r--drivers/staging/usbip/stub_dev.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index 8214c353d9f5..bce7d039346c 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -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 */
/*