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bus: mhi: ep: Protect mhi_ep_handle_syserr() in the error path

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All the callers of mhi_ep_handle_syserr() except mhi_ep_process_cmd_ring()
are holding the 'state_lock' to avoid the race in setting the MHI state. So
do the same in mhi_ep_process_cmd_ring() for sanity.

Fixes: e827569062 ("bus: mhi: ep: Add support for processing command rings")
Cc: stable@vger.kernel.org # 5.18
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Link: https://patch.msgid.link/20260302085612.18725-1-manivannan.sadhasivam@oss.qualcomm.com
This commit is contained in:
Manivannan Sadhasivam
2026-03-02 14:26:12 +05:30
parent 5096977d0d
commit 519ddf194b
1 changed files with 2 additions and 0 deletions
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2
drivers/bus/mhi/ep/main.c
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@@ -232,7 +232,9 @@ static int mhi_ep_process_cmd_ring(struct mhi_ep_ring *ring, struct mhi_ring_ele
ret = mhi_ep_create_device(mhi_cntrl, ch_id);
if (ret) {
dev_err(dev, "Error creating device for channel (%u)\n", ch_id);
mutex_lock(&mhi_cntrl->state_lock);
mhi_ep_handle_syserr(mhi_cntrl);
mutex_unlock(&mhi_cntrl->state_lock);
return ret;
}
}