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wifi: ath11k: allow system suspend to survive ath11k

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commit 7c15430822 upstream.

When ath11k runs into internal errors upon suspend,
it returns an error code to pci_pm_suspend, which
aborts the entire system suspend.

The driver should not abort system suspend, but should
keep its internal errors to itself, and allow the system
to suspend.  Otherwise, a user can suspend a laptop
by closing the lid and sealing it into a case, assuming
that is will suspend, rather than heating up and draining
the battery when in transit.

In practice, the ath11k device seems to have plenty of transient
errors, and subsequent suspend cycles after this failure
often succeed.

https://bugzilla.kernel.org/show_bug.cgi?id=216968

Fixes: d1b0c33850 ("ath11k: implement suspend for QCA6390 PCI devices")

Signed-off-by: Len Brown <len.brown@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230201183201.14431-1-len.brown@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Len Brown
2023-02-01 12:32:01 -06:00
committed by Greg Kroah-Hartman
parent f592cd2f13
commit 60e49fe9b7
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath11k/pci.c
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@@ -1395,7 +1395,7 @@ static __maybe_unused int ath11k_pci_pm_suspend(struct device *dev)
if (ret)
ath11k_warn(ab, "failed to suspend core: %d\n", ret);
return ret;
return 0;
}
static __maybe_unused int ath11k_pci_pm_resume(struct device *dev)