[PATCH 06/10] bus: mhi: core: Set BHI and BHIe pointers to NULL in clean-up

[Manivannan Sadhasivam]

From: Bhaumik Bhatt <bbhatt at 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 at vger.kernel.org
Suggested-by: Hemant Kumar <hemantk at codeaurora.org>
Signed-off-by: Bhaumik Bhatt <bbhatt at codeaurora.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo at quicinc.com>
Reviewed-by: Hemant Kumar <hemantk at codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Link: https://lore.kernel.org/r/1620330705-40192-3-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam at 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);
-- 
2.25.1