4.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Mark Brown <[email protected]> commit 06423121d9eba0a56b9341cf82b88479017bce14 upstream. When resolving regulator-regulator supplies we ignore probe deferral returns from regulator_dev_lookup() (such as are generated for DT when we can see a supply is registered) and just fall back to the dummy regulator if there are full constraints (as is the case for DT). This means that probe deferral is broken for DT systems, fix that by paying attention to -EPROBE_DEFER return codes like we do -ENODEV. A further patch will simplify this further, this is a minimal fix for the specific issue. Fixes: 9f7e25edb1575a6d2 (regulator: core: Handle full constraints systems when resolving supplies) Reported-by: Sascha Hauer <[email protected]> Tested-by: Sascha Hauer <[email protected]> Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/regulator/core.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1385,6 +1385,10 @@ static int regulator_resolve_supply(stru return 0; } + /* Did the lookup explicitly defer for us? */ + if (ret == -EPROBE_DEFER) + return ret; + if (have_full_constraints()) { r = dummy_regulator_rdev; } else { -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
