iio: adc: xilinx: fix potential use-after-free on remove

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When cancel_delayed_work() returns, the delayed work may still
be running. This means that the core could potentially free
the private structure (struct xadc) while the delayed work
is still using it. This is a potential use-after-free.

Fix by calling cancel_delayed_work_sync(), which waits for
any residual work to finish before returning.

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Sven Van Asbroeck 2019-03-10 14:58:24 -04:00 • committed by Jonathan Cameron

parent 0600353150

commit 62039b6aef

1 changed files with 1 additions and 1 deletions

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drivers/iio/adc/xilinx-xadc-core.c

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