This is a note to let you know that I've just added the patch titled
PCI: keystone: Fix if-statement expression in ks_pcie_quirk()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-keystone-fix-if-statement-expression-in-ks_pcie_.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2273ae79d1cbf32aacf88af1dfdeacb8fa0b393d
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Fri Jul 19 18:53:26 2024 -0500
PCI: keystone: Fix if-statement expression in ks_pcie_quirk()
[ 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@stanley.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@xxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index e738013c6d4f5..ae5506293557e 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -580,7 +580,7 @@ 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);
