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SubjectRe: [PATCH v6 8/8] bus: mhi: core: Do not clear channel context more than once

On 2/4/21 12:28 PM, Bhaumik Bhatt wrote:
> Clearing a channel context can happen twice if the client driver
> unprepares and reset the channels from the remove() callback from
> a controller requested MHI power down sequence. If there are
> multiple attempts at calling the mhi_free_coherent() API, we see
> kernel warnings such as "trying to free invalid coherent area".
> Example for one such client is the QRTR MHI driver. Avoid these
> warnings by skipping mhi_deinit_chan_ctxt() API call and prevent
> extra work from MHI as the channels are already disabled.
> Signed-off-by: Bhaumik Bhatt <>

Reviewed-by: Hemant Kumar <>
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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