[PATCH] wifi: ath12k: fix soft lockup on suspend

Jeff Johnson quic_jjohnson at quicinc.com
Tue Jul 9 07:17:46 PDT 2024


On 7/9/2024 12:31 AM, Johan Hovold wrote:
> The ext interrupts are enabled when the firmware has been started, but
> this may never happen, for example, if the board configuration file is
> missing.
> 
> When the system is later suspended, the driver unconditionally tries to
> disable interrupts, which results in an irq disable imbalance and causes
> the driver to spin indefinitely in napi_synchronize().
> 
> Make sure that the interrupts have been enabled before attempting to
> disable them.
> 
> Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
> Cc: stable at vger.kernel.org	# 6.3
> Signed-off-by: Johan Hovold <johan+linaro at kernel.org>
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>




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