| commit | 64ba3dc3143d94bbe935722aa17fa516b232bc83 | [log] [tgz] |
|---|---|---|
| author | Arnd Bergmann <arnd@arndb.de> | Tue Jun 01 22:53:02 2010 +0200 |
| committer | Greg Kroah-Hartman <gregkh@suse.de> | Tue Aug 10 13:47:43 2010 -0700 |
| tree | 9649ffd431eb8dc97fbad83d47feaed96980cb7e | |
| parent | ec79d6056de58511d8e46d9ae59d3878f958dc3e [diff] |
tty: never hold BTM while getting tty_mutex tty_mutex is never taken with the BTM held, except for two corner cases that are worked around here. We give up the BTM before calling tty_release() in the error path of tty_open(). Similarly, we reorder the locking in ptmx_open() to get tty_mutex before the BTM. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>