PCI: al: Check IORESOURCE_BUS existence during probe

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[ Upstream commit a9927c2cac ]

If IORESOURCE_BUS is not provided in Device Tree it will be fabricated in
of_pci_parse_bus_range(), so NULL pointer dereference should not happen
here.

But that's hard to verify, so check for NULL anyway.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Link: https://lore.kernel.org/linux-pci/20240503125705.46055-1-amishin@t-argos.ru
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Aleksandr Mishin 2024-05-03 15:57:05 +03:00 • committed by Greg Kroah-Hartman

parent ea37096a6a

commit 7cdb515855

1 changed files with 13 additions and 3 deletions

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drivers/pci/controller/dwc/pcie-al.c

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