staging: wfx: fix race between configure_filter and remove_interface

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wfx_remove_interface() and wfx_configure_filter() can be run
concurrently. Therefore, this patch protect access to the list of
interfaces from wfx_configure_filter().

Notice that wfx_configure_filter() now lock "conf_lock" and "scan_lock".
Beside that, wfx_hw_scan_work() also access to the same locks. So we
have to lock them in same order to avoid any deadlock.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200410133239.438347-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jérôme Pouiller 2020-04-10 15:32:21 +02:00 • committed by Greg Kroah-Hartman

parent be4692e5e0

commit 0f66c31eb6

2 changed files with 4 additions and 2 deletions

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4

drivers/staging/wfx/scan.c

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2

drivers/staging/wfx/sta.c

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