From: Bhaumik Bhatt bbhatt@codeaurora.org

Set the BHI and BHIe pointers to NULL as part of clean-up. This makes sure that stale pointers are not accessed after powering MHI down.

Cc: stable@vger.kernel.org Suggested-by: Hemant Kumar hemantk@codeaurora.org Signed-off-by: Bhaumik Bhatt bbhatt@codeaurora.org Reviewed-by: Jeffrey Hugo quic_jhugo@quicinc.com Reviewed-by: Hemant Kumar hemantk@codeaurora.org Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Link: https://lore.kernel.org/r/1620330705-40192-3-git-send-email-bbhatt@codeauror... Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- drivers/bus/mhi/core/init.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index 11c7a3d3c9bf..1cc2f225d3d1 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -1132,6 +1132,9 @@ void mhi_unprepare_after_power_down(struct mhi_controller *mhi_cntrl) mhi_cntrl->rddm_image = NULL; }

+ mhi_cntrl->bhi = NULL; + mhi_cntrl->bhie = NULL; + mhi_deinit_dev_ctxt(mhi_cntrl); } EXPORT_SYMBOL_GPL(mhi_unprepare_after_power_down);