Re: [PATCH] slimbus: qcom-ngd-ctrl: Release the TX descriptor on error paths

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Thu, Oct 01, 2026 at 11:25:20PM +0000, Babanpreet Singh wrote:
> Hi Srinivas,
> 
> Static analysis, then reading. smatch flagged the txn->msg check in
> qcom_slim_ngd_xfer_msg() and while I was looking at that function I
> noticed the two returns between tx_msg_get() and tx_msg_post(). I do not
> have a SLIMbus target. The -ENOMEM consequence in the commit message is
> derived from the code rather than observed: tx_head only moves in
> qcom_slim_ngd_tx_msg_dma_cb() and in the re-init path, so a descriptor
> that is claimed and never posted has no way back into the ring.
> 
> Verification was build only.
> 
> On the stable tag: I can send a v2 with Cc: stable and the "found by
> static analysis, compile tested only" wording.

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