• Richard Larocque's avatar
    alarmtimer: Lock k_itimer during timer callback · 474e941b
    Richard Larocque authored
    Locks the k_itimer's it_lock member when handling the alarm timer's
    expiry callback.
    
    The regular posix timers defined in posix-timers.c have this lock held
    during timout processing because their callbacks are routed through
    posix_timer_fn().  The alarm timers follow a different path, so they
    ought to grab the lock somewhere else.
    
    Cc: stable@vger.kernel.org
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Richard Cochran <richardcochran@gmail.com>
    Cc: Prarit Bhargava <prarit@redhat.com>
    Cc: Sharvil Nanavati <sharvil@google.com>
    Signed-off-by: default avatarRichard Larocque <rlarocque@google.com>
    Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
    474e941b
alarmtimer.c 21.3 KB