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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-07-16 14:10:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-10 12:20:30 -0700 |
| commit | dcc2305a489922a4fff7072bc811492f0fa5b2ed (patch) | |
| tree | a8c464e23286884d2455f603ec0a6f6c08ae8beb /sound | |
| parent | 508a750fe6cc950bad1cca07f1637ce4815b5420 (diff) | |
| download | edison-v3.10-dcc2305a489922a4fff7072bc811492f0fa5b2ed.tar.gz | |
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>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions