* [071/165] USB: g_serial: fix tty cleanup on unload
@ 2010-07-30 17:14 Greg KH
0 siblings, 0 replies; only message in thread
From: Greg KH @ 2010-07-30 17:14 UTC (permalink / raw)
To: linux-kernel, stable
Cc: stable-review, torvalds, akpm, alan, Jon Povey, David Brownell
2.6.32-stable review patch. If anyone has any objections, please let us know.
------------------
From: Jon Povey <jon.povey@racelogic.co.uk>
commit b23097b793081358a6d943263c91bae4c955c4e3 upstream.
Call put_tty_driver() in cleanup function, to fix Oops when trying to open
gadget serial char device after module unload.
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/gadget/u_serial.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -1183,6 +1183,7 @@ void gserial_cleanup(void)
n_ports = 0;
tty_unregister_driver(gs_tty_driver);
+ put_tty_driver(gs_tty_driver);
gs_tty_driver = NULL;
pr_debug("%s: cleaned up ttyGS* support\n", __func__);
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