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bugfix: pci遍历capability list时无法正确访问下一个list的bug

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This commit is contained in:
fslongjin 2022-08-27 12:41:42 +08:00
parent 1f30417ec1
commit 3d5fe966d3
1 changed files with 2 additions and 3 deletions
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5
kernel/driver/pci/pci.c
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@ -525,12 +525,11 @@ int32_t pci_enumerate_capability_list(struct pci_device_structure_header_t *pci_
while (1) while (1)
{ {
tmp = pci_read_config(pci_dev->bus, pci_dev->device, pci_dev->func, cap_offset); tmp = pci_read_config(pci_dev->bus, pci_dev->device, pci_dev->func, cap_offset);
kdebug("tmp & 0xff=%#010lx",tmp & 0xff);
if ((tmp & 0xff) != cap_type) if ((tmp & 0xff) != cap_type)
{ {
if ((tmp & 0xff00) >> 8) if (((tmp & 0xff00) >> 8))
{ {
cap_offset = (tmp & 0xff00); cap_offset = (tmp & 0xff00)>>8;
continue; continue;
} }
else else