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USB: g_serial: fix tty cleanup on unload
author
Jon Povey
<jon.povey@racelogic.co.uk>
Mon, 14 Jun 2010 10:42:10 +0000
(19:42 +0900)
committer
Greg Kroah-Hartman
<gregkh@suse.de>
Wed, 30 Jun 2010 15:16:05 +0000
(08:16 -0700)
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>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/gadget/u_serial.c
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diff --git
a/drivers/usb/gadget/u_serial.c
b/drivers/usb/gadget/u_serial.c
index a0f79df4c6c2086895b2562a443bbafc25359ade..3e8dcb5455e3a4912f7bc0fc525b69c524cade7f 100644
(file)
--- a/
drivers/usb/gadget/u_serial.c
+++ b/
drivers/usb/gadget/u_serial.c
@@
-1184,6
+1184,7
@@
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__);