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authorBhaumik Bhatt <bbhatt@codeaurora.org>2021-08-02 10:42:52 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-08-05 14:28:47 +0200
commit3551a30b9d4c2a5520e6c798758a6f4858adcd0a (patch)
tree678f8fe9792ba52fe0c7c574f3e8050fdcf845e3 /drivers/bus
parentc92513b8814f4955c3ea3c685d9a193e1c7823f0 (diff)
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 <hemantk@codeaurora.org> Reviewed-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20210802051255.5771-8-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/mhi/pci_generic.c1
1 files changed, 1 insertions, 0 deletions
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) {