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cnss2: Protect PCI bus resume with mutex lock

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Race condition seen between WAKE interrupt handler
and HOST triggered recovery. Due to the race PCI
link up is called back to back. Protect PCI bus
resume with bus_lock mutex.

Change-Id: Ifc140921bdf803bc2d46365b4e5a59cba34ee715
CRs-Fixed: 3614970
This commit is contained in:
Naman Padhiar
2023-09-13 16:58:24 +05:30
committed by Rahul Choudhary
parent 328d2fa04f
commit a883a8f321
1 changed files with 2 additions and 0 deletions
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2
cnss2/pci.c
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@@ -3989,7 +3989,9 @@ static int cnss_pci_resume(struct device *dev)
goto out;
if (!pci_priv->disable_pc) {
mutex_lock(&pci_priv->bus_lock);
ret = cnss_pci_resume_bus(pci_priv);
mutex_unlock(&pci_priv->bus_lock);
if (ret)
goto out;
}