29.09.2020 20:42, Dmitry Osipenko пишет: > 29.09.2020 09:13, Nicolin Chen пишет: >> This is used to protect potential race condition at use_count. >> since probes of client drivers, calling attach_dev(), may run >> concurrently. >> >> Signed-off-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx> >> --- > > It's always better not to mix success and error code paths in order to > keep code readable, but not a big deal in the case of this particular > patch since the changed code is quite simple. Please try to avoid doing > this in the future patches. > > Also, please note that in general it's better to use locked/unlocked > versions for the functions like it's already done for > tegra_smmu_map/unmap, this will remove the need to maintain lockings in > the code. The code touched by this patch doesn't have complicated code > paths, so it's good enough to me. > > Reviewed-by: Dmitry Osipenko <digetx@xxxxxxxxx> > Tested-by: Dmitry Osipenko <digetx@xxxxxxxxx>
