drivers/regulator: fix a missing check of return value
authorKangjie Lu <kjlu@umn.edu>
Wed, 19 Dec 2018 05:04:13 +0000 (23:04 -0600)
committerMark Brown <broonie@kernel.org>
Wed, 19 Dec 2018 12:37:52 +0000 (12:37 +0000)
commit966e927bf8cc6a44f8b72582a1d6d3ffc73b12ad
treeca43c6c5bf5f25abc61cbd98f59ce734a3401ad2
parent22a5a4a44c43e2993e96183039aef71566e1a514
drivers/regulator: fix a missing check of return value

If palmas_smps_read() fails, we should not use the read data in "reg"
which may contain random value. The fix inserts a check for the return
value of palmas_smps_read(): If it fails, we return the error code
upstream and stop using "reg".

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/palmas-regulator.c