diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2015-07-16 14:10:17 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-10 12:21:04 -0700 |
commit | fe4aeb98a2df873f4921ae398b31b297d454a760 (patch) | |
tree | fc1fa2b93e15a1f786e957e54c2c5c1791f6f897 /sound/usb | |
parent | 06d4d08d6c4ed66c85170b326c67c2d941613e40 (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>
Diffstat (limited to 'sound/usb')
0 files changed, 0 insertions, 0 deletions