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PCI: rockchip: Fix find_first_zero_bit() limit

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[ Upstream commit 096950e230b8d83645c7cf408b9f399f58c08b96 ]

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

Link: https://lore.kernel.org/r/20220315065944.GB13572@kili
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip 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>
This commit is contained in:
Dan Carpenter 2022-03-15 09:59:44 +03:00 committed by Greg Kroah-Hartman
parent 266f5cf692
commit 92b7cab307
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/controller/pcie-rockchip-ep.c
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@ -264,8 +264,7 @@ static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn,
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.