From 301aaef42b658586812369b3c9501fc5b60e11dc Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 27 Sep 2022 21:09:22 +0800 Subject: [PATCH] PCI: rockchip: Fix find_first_zero_bit() limit stable inclusion from stable-v5.10.121 commit 92b7cab3076d0cfbf57c2d8270ff66e7d7c675fe category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5L6CQ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=92b7cab3076d0cfbf57c2d8270ff66e7d7c675fe -------------------------------- [ 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 Signed-off-by: Lorenzo Pieralisi Signed-off-by: Sasha Levin Signed-off-by: Zheng Zengkai Acked-by: Xie XiuQi --- 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 7631dc3961c1..379cde59988c 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, 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. -- GitLab