diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-07-16 14:10:17 +0200 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-08-26 19:58:36 +0200 |
| commit | 79e30716b4b0baa199cc4b6ea7d2832d20484b0d (patch) | |
| tree | e7f8f58aa623bf8bc14b591763105d5d007991df /sound | |
| parent | efb67fa9c4343c6ebbcb14ea55cc2c2e3552f910 (diff) | |
genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD
commit 75a06189fc508a2acf470b0b12710362ffb2c4b1 upstream.
The resend mechanism happily calls the interrupt handler of interrupts
which are marked IRQ_NESTED_THREAD from softirq context. This can
result in crashes because the interrupt handler is not the proper way
to invoke the device handlers. They must be invoked via
handle_nested_irq.
Prevent the resend even if the interrupt has no valid parent irq
set. Its better to have a lost interrupt than a crashing machine.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions