> Maybe dmc->df->lock seems not needed to protect "if (ret) > & dev_warn" branch. Maybe this change speed up the code a bit. I suggest to improve also this commit message. * Please reduce uncertainty. * An imperative wording is probably preferred, isn't it? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=152036d1379ffd6985262743dcf6b0f9c75f83a4#n151 * Will it be more appropriate to refer to the transformation “Reduce the lock scope”? * Would you like to add the tag “Fixes” to the change description? Regards, Markus