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authorLars-Peter Clausen <lars@metafoo.de>2009-12-15 16:30:01 +0300
committerLiam Girdwood <lrg@slimlogic.co.uk>2009-12-17 13:27:28 +0300
commiteb143ac1b9f56ca9c6dc782d795acda1f60c5fd2 (patch)
tree33a56cd82ee52eb613c9fb81bbcf8f15586e7f49 /drivers/regulator
parentfa2984d4691c96367d6666694ecc6744135174c6 (diff)
downloadlinux-eb143ac1b9f56ca9c6dc782d795acda1f60c5fd2.tar.xz
regulator: Fix unbalanced disables/enables in regulator_bulk_{enable,disable} error path
Currently it is possible for regulator_bulk_{enable,disable} operations to generate unbalanced regulator_{disable,enable} calls in its error path. In case of an error only those regulators of the bulk operation which actually had been enabled/disabled should get their original state restored. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 1af8df203b72..686ef270ecf7 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1977,7 +1977,7 @@ int regulator_bulk_enable(int num_consumers,
err:
printk(KERN_ERR "Failed to enable %s: %d\n", consumers[i].supply, ret);
- for (i = 0; i < num_consumers; i++)
+ for (--i; i >= 0; --i)
regulator_disable(consumers[i].consumer);
return ret;
@@ -2013,7 +2013,7 @@ int regulator_bulk_disable(int num_consumers,
err:
printk(KERN_ERR "Failed to disable %s: %d\n", consumers[i].supply,
ret);
- for (i = 0; i < num_consumers; i++)
+ for (--i; i >= 0; --i)
regulator_enable(consumers[i].consumer);
return ret;