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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-03-15 09:58:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 11:21:13 +0300 |
| commit | 266f5cf6928a79a16cb8bc37f7237ea401247d2b (patch) | |
| tree | 99866a10741fbc37f0532ee5e2c4f2b86ccef933 /drivers/pci | |
| parent | a409d0b1f92906e5df0f2ff02f6fe8c319f24869 (diff) | |
| download | linux-266f5cf6928a79a16cb8bc37f7237ea401247d2b.tar.xz | |
PCI: cadence: Fix find_first_zero_bit() limit
[ 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>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/cadence/pcie-cadence-ep.c | 3 |
1 files changed, 1 insertions, 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; |