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authorIan Moffett <ian@osmora.org>2024-07-11 11:04:16 -0400
committerIan Moffett <ian@osmora.org>2024-07-11 11:04:16 -0400
commit45ad7c0c7b86f7abbc5ce0d13fb947dca1645316 (patch)
treee8f199b8710756a1eefed78976d47e7f5428d724 /sys/dev/pci
parentbf9ad82ee961b839654e2322f083c13532f2c0c6 (diff)
kernel: pci: Fix cap offset handling
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/dev/pci')
-rw-r--r--sys/dev/pci/pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index 65f315d..a7b8bac 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -110,6 +110,7 @@ static void
pci_set_device_info(struct pci_device *dev)
{
uint32_t classrev;
+ int capoff;
dev->vendor_id = pci_readl(dev, PCIREG_VENDOR_ID) & 0xFFFF;
dev->device_id = pci_readl(dev, PCIREG_DEVICE_ID) & 0xFFFF;
@@ -127,7 +128,8 @@ pci_set_device_info(struct pci_device *dev)
dev->bar[5] = pci_readl(dev, PCIREG_BAR5);
dev->irq_line = pci_readl(dev, PCIREG_IRQLINE) & 0xFF;
- dev->msix_capoff = pci_get_cap(dev, PCI_CAP_MSIX);
+ capoff = pci_get_cap(dev, PCI_CAP_MSIX);
+ dev->msix_capoff = (capoff < 0) ? 0 : capoff;
}
/*