From 3551a30b9d4c2a5520e6c798758a6f4858adcd0a Mon Sep 17 00:00:00 2001 From: Bhaumik Bhatt Date: Mon, 2 Aug 2021 10:42:52 +0530 Subject: bus: mhi: pci_generic: Set register access length for MHI driver MHI driver requires register space length to add range checks and prevent memory region accesses outside of that for MMIO space. Set it from the PCI generic controller driver before registering the MHI controller. Link: https://lore.kernel.org/r/1620330705-40192-6-git-send-email-bbhatt@codeaurora.org Reviewed-by: Hemant Kumar Reviewed-by: Loic Poulain Reviewed-by: Manivannan Sadhasivam Signed-off-by: Bhaumik Bhatt Signed-off-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20210802051255.5771-8-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/bus/mhi/pci_generic.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/bus/mhi') diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index 5872c42927b1..4026d5c2ee79 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -524,6 +524,7 @@ static int mhi_pci_claim(struct mhi_controller *mhi_cntrl, return err; } mhi_cntrl->regs = pcim_iomap_table(pdev)[bar_num]; + mhi_cntrl->reg_len = pci_resource_len(pdev, bar_num); err = pci_set_dma_mask(pdev, dma_mask); if (err) { -- cgit v1.2.3