| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 263/452] PCI: cadence: Fix find_first_zero_bit() limit | Date | Tue, 7 Jun 2022 19:02:00 +0200 |
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From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 0aa3a0937feeb91a0e4e438c3c063b749b194192 ]
The ep->ob_region_map bitmap is a long and it has BITS_PER_LONG bits.
Link: https://lore.kernel.org/r/20220315065829.GA13572@kili Fixes: 37dddf14f1ae ("PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/pci/controller/cadence/pcie-cadence-ep.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c index 1af14474abcf..4c5e6349d78c 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c @@ -154,8 +154,7 @@ static int cdns_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, phys_addr_t addr, struct cdns_pcie *pcie = &ep->pcie; u32 r; - r = find_first_zero_bit(&ep->ob_region_map, - sizeof(ep->ob_region_map) * BITS_PER_LONG); + r = find_first_zero_bit(&ep->ob_region_map, BITS_PER_LONG); if (r >= ep->max_regions - 1) { dev_err(&epc->dev, "no free outbound region\n"); return -EINVAL; -- 2.35.1
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