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2447e2cad7
If we don't have an out-of-band wakeup IRQ configured through DT (as
most platforms don't), then we fall out of this function with
'irq_wakeup == 0'. Other code (e.g., mwifiex_disable_wake() and
mwifiex_enable_wake()) treats 'irq_wakeup >= 0' as a valid IRQ, and so
we end up calling {enable,disable}_irq() on IRQ 0.
That seems bad, so let's not do that.
Same problem as fixed in this patch:
https://patchwork.kernel.org/patch/9531693/
[PATCH v2 2/3] btmrvl: set irq_bt to -1 when failed to parse it
with the difference that:
(a) this one is actually a regression and
(b) this affects both device tree and non-device-tree systems
While fixing the regression, also drop the verbosity on the parse
failure, so we don't see this when a DT node is present but doesn't have
an interrupt property (this is perfectly legal):
[ 21.999000] mwifiex_pcie 0000:01:00.0: fail to parse irq_wakeup from device tree
Fixes:
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.. | ||
libertas | ||
libertas_tf | ||
mwifiex | ||
Kconfig | ||
Makefile | ||
mwl8k.c |