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authorBhaumik Bhatt <bbhatt@codeaurora.org>2021-04-01 14:16:11 -0700
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2021-04-07 12:25:42 +0530
commit4e44ae3d6d9c2c2a6d9356dd279c925532d5cd8c (patch)
tree74b7944437c688efd82a921e6f483af95e69e16e /drivers/bus
parent5a62e39b45b585726e0dcbf383bfc70dc9f07637 (diff)
bus: mhi: core: Clear context for stopped channels from remove()
If a channel was explicitly stopped but not reset and a driver remove is issued, clean up the channel context such that it is reflected on the device. This move is useful if a client driver module is unloaded or a device crash occurs with the host having placed the channel in a stopped state. Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org> Reviewed-by: Hemant Kumar <hemantk@codeaurora.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1617311778-1254-3-git-send-email-bbhatt@codeaurora.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/mhi/core/init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index 1f6135213251..a507895f6209 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -1290,7 +1290,8 @@ static int mhi_driver_remove(struct device *dev)
mutex_lock(&mhi_chan->mutex);
- if (ch_state[dir] == MHI_CH_STATE_ENABLED &&
+ if ((ch_state[dir] == MHI_CH_STATE_ENABLED ||
+ ch_state[dir] == MHI_CH_STATE_STOP) &&
!mhi_chan->offload_ch)
mhi_deinit_chan_ctxt(mhi_cntrl, mhi_chan);