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authorXiaobing Tu <xiaobing.tu@intel.com>2012-03-16 03:00:26 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-09 12:12:45 -0700
commitc56a00a165712fd73081f40044b1e64407bb1875 (patch)
treefee2ca034eb2cc52e6a21880ad875e6d05307d57 /mm
parent871bdea6f8c64517635bec352b8bec6b72a26d80 (diff)
tty: hold lock across tty buffer finding and buffer filling
tty_buffer_request_room is well protected, but while after it returns, it releases the port->lock. tty->buf.tail might be modified by either irq handler or other threads. The patch adds more protection by holding the lock across tty buffer finding and buffer filling. Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Xiaobing Tu <xiaobing.tu@intel.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions