diff options
| -rw-r--r-- | drivers/pci/endpoint/pci-ep-cfs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c index e8f65eb51c1a..c9a2fb9dd49d 100644 --- a/drivers/pci/endpoint/pci-ep-cfs.c +++ b/drivers/pci/endpoint/pci-ep-cfs.c @@ -103,7 +103,10 @@ static int pci_epc_epf_link(struct config_item *epc_item, struct pci_epf *epf = epf_group->epf; func_no = find_first_zero_bit(&epc_group->function_num_map, - sizeof(epc_group->function_num_map)); + BITS_PER_LONG); + if (func_no >= BITS_PER_LONG) + return -EINVAL; + set_bit(func_no, &epc_group->function_num_map); epf->func_no = func_no; |