diff mbox series

[09/10] bus: mhi: pci_generic: Set register access length for MHI driver

Message ID 20210625123355.11578-10-manivannan.sadhasivam@linaro.org
State Superseded
Headers show
Series MHI patches for v5.14 - Take 2 | expand

Commit Message

Manivannan Sadhasivam June 25, 2021, 12:33 p.m. UTC 
From: Bhaumik Bhatt <bbhatt@codeaurora.org>


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.

Signed-off-by: Bhaumik Bhatt <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>

Link: https://lore.kernel.org/r/1620330705-40192-6-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

---
 drivers/bus/mhi/pci_generic.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.25.1
diff mbox series

Patch

diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
index 89f71e6db23f..8bc6149249e3 100644
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -508,6 +508,7 @@  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) {