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path: root/drivers/fpga/dfl-pci.c
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Diffstat (limited to 'drivers/fpga/dfl-pci.c')
-rw-r--r--drivers/fpga/dfl-pci.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl-pci.c
index 717ac9715970..fd1fa55c9113 100644
--- a/drivers/fpga/dfl-pci.c
+++ b/drivers/fpga/dfl-pci.c
@@ -259,6 +259,15 @@ static int find_dfls_by_default(struct pci_dev *pcidev,
*/
bar = FIELD_GET(FME_PORT_OFST_BAR_ID, v);
offset = FIELD_GET(FME_PORT_OFST_DFH_OFST, v);
+ if (bar == FME_PORT_OFST_BAR_SKIP) {
+ continue;
+ } else if (bar >= PCI_STD_NUM_BARS) {
+ dev_err(&pcidev->dev, "bad BAR %d for port %d\n",
+ bar, i);
+ ret = -EINVAL;
+ break;
+ }
+
start = pci_resource_start(pcidev, bar) + offset;
len = pci_resource_len(pcidev, bar) - offset;