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brcmfmac: pcie: fix oops on failure to resume and reprobe

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[ Upstream commit d745ca4f2c4ae9f1bd8cf7d8ac6e22d739bffd19 ]

When resuming from suspend, brcmf_pcie_pm_leave_D3 will first attempt a
hot resume and then fall back to removing the PCI device and then
reprobing. If this probe fails, the kernel will oops, because brcmf_err,
which is called to report the failure will dereference the stale bus
pointer. Open code and use the default bus-less brcmf_err to avoid this.

Fixes: 8602e62441ab ("brcmfmac: pass bus to the __brcmf_err() in pcie.c")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210817063521.22450-1-a.fatoum@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ahmad Fatoum 2021-08-17 08:35:22 +02:00 committed by Greg Kroah-Hartman
parent e68128e078
commit 4663aaef24
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@ -2073,7 +2073,7 @@ cleanup:
err = brcmf_pcie_probe(pdev, NULL);
if (err)
brcmf_err(bus, "probe after resume failed, err=%d\n", err);
__brcmf_err(NULL, __func__, "probe after resume failed, err=%d\n", err);
return err;
}