ath11k: 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 before registering the MHI controller.

Link: https://lore.kernel.org/r/1620330705-40192-5-git-send-email-bbhatt@codeaurora.org
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210802051255.5771-7-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c
index 75cc2d80fde8dedb8fc740b5303daee566f9e86e..26c7ae242db67bd41f88c69f30f106b9a8bf577c 100644 (file)
--- a/drivers/net/wireless/ath/ath11k/mhi.c
+++ b/drivers/net/wireless/ath/ath11k/mhi.c
@@ -330,6 +330,7 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci)
        mhi_ctrl->cntrl_dev = ab->dev;
        mhi_ctrl->fw_image = ab_pci->amss_path;
        mhi_ctrl->regs = ab->mem;
+       mhi_ctrl->reg_len = ab->mem_len;
 
        ret = ath11k_mhi_get_msi(ab_pci);
        if (ret) {