Zhongqiu Han
0e6d92e3b9
[ Upstream commit5089b3d874] If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it. Fixes:1bf5f25324("PCI: endpoint: Add PCI Endpoint function driver for MHI bus") Link: https://lore.kernel.org/r/20241105120735.1240728-1-quic_zhonhan@quicinc.com Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com> [kwilczynski: error message update per the review feedback] Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>