5.4-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@linaro.org
[ Upstream commit 6188a1c762eb9bbd444f47696eda77a5eae6207a ]
This code accidentally uses && where || was intended. It potentially results in a NULL dereference.
Thus, fix the if-statement expression to use the correct condition.
Fixes: 86f271f22bbb ("PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)") Link: https://lore.kernel.org/linux-pci/1b762a93-e1b2-4af3-8c04-c8843905c279@stanl... Signed-off-by: Dan Carpenter dan.carpenter@linaro.org [kwilczynski: commit log] Signed-off-by: Krzysztof Wilczyński kwilczynski@kernel.org Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Reviewed-by: Siddharth Vadapalli s-vadapalli@ti.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/dwc/pci-keystone.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c index a16fe2a558c7a..b28d3c4205fe4 100644 --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -595,7 +595,7 @@ static void ks_pcie_quirk(struct pci_dev *dev) */ if (pci_match_id(am6_pci_devids, bridge)) { bridge_dev = pci_get_host_bridge_device(dev); - if (!bridge_dev && !bridge_dev->parent) + if (!bridge_dev || !bridge_dev->parent) return;
ks_pcie = dev_get_drvdata(bridge_dev->parent);