This is a note to let you know that I've just added the patch titled
PCI: cadence: Fix find_first_zero_bit() limit
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-cadence-fix-find_first_zero_bit-limit.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bb120ab6af37328d0c2521c575106d4b4ec2a210
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Tue Mar 15 09:58:29 2022 +0300
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@xxxxxxxxxx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
index 88e05b9c2e5b..18e32b8ffd5e 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
@@ -187,8 +187,7 @@ static int cdns_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vfn,
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;
