[PATCH] PCI: rockchip: fix find_first_zero_bit() limit

Dan Carpenter dan.carpenter at oracle.com
Mon Mar 14 23:59:44 PDT 2022


The ep->ob_region_map bitmap is a long and it has BITS_PER_LONG bits.

Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 drivers/pci/controller/pcie-rockchip-ep.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 5fb9ce6e536e..d1a200b93b2b 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -264,8 +264,7 @@ static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vfn,
 	struct rockchip_pcie *pcie = &ep->rockchip;
 	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);
 	/*
 	 * Region 0 is reserved for configuration space and shouldn't
 	 * be used elsewhere per TRM, so leave it out.
-- 
2.20.1




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