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(parent: 9b80fee) | patch
tty: USB hangup is racy
authorAlan Cox <alan@linux.intel.com>
Sat, 19 Sep 2009 20:13:23 +0000 (13:13 -0700)
committerLive-CD User <linux@linux.site>
Sat, 19 Sep 2009 20:13:23 +0000 (13:13 -0700)
commitd2b391822a11302add9e46476f3da4e18e6de84c
tree26cd352e935d0cf3c65181d78f9af86b21b48e79tree | snapshot
parent9b80fee149a875a6292b2556ab2c64dc7ab7d6f5commit | diff
tty: USB hangup is racy

The USB layer uses tty_hangup to deal with unplugs of the physical hardware
(analogous to loss of carrier) and then frees the resources. However the
tty_hangup is asynchronous. As the hangup can sleep we can use tty_vhangup
which is the non async version to avoid freeing resources too early.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/serial/usb-serial.c diff | blob | history
Domain: System / Uncategorized;