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authorMark Brown <broonie@sirena.org.uk>2013-04-28 02:13:37 +0100
committerMark Brown <broonie@sirena.org.uk>2013-04-28 02:13:37 +0100
commit0e340ce1ddcf41ca435ef695ef004a6f587c749e (patch)
tree9f4cc87138ecf29762e1037a8c028c6ddd3ebc03 /drivers/regulator/core.c
parent97844ede9487fc7c4689ce1499bbaa10312618be (diff)
parent020501f1a0911af70873e4d3d122b2e1889ccd03 (diff)
Merge remote-tracking branch 'regulator/topic/core' into v3.9-rc8
Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r--drivers/regulator/core.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 56f4ca0854c9..6437949849b0 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -116,7 +116,7 @@ static const char *rdev_get_name(struct regulator_dev *rdev)
* @supply: regulator supply name
*
* Extract the regulator device node corresponding to the supply name.
- * retruns the device node corresponding to the regulator if found, else
+ * returns the device node corresponding to the regulator if found, else
* returns NULL.
*/
static struct device_node *of_get_regulator(struct device *dev, const char *supply)
@@ -1229,7 +1229,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
struct regulator_dev *rdev;
struct regulator *regulator = ERR_PTR(-EPROBE_DEFER);
const char *devname = NULL;
- int ret;
+ int ret = 0;
if (id == NULL) {
pr_err("get() with no identifier\n");
@@ -1245,6 +1245,15 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
if (rdev)
goto found;
+ /*
+ * If we have return value from dev_lookup fail, we do not expect to
+ * succeed, so, quit with appropriate error value
+ */
+ if (ret) {
+ regulator = ERR_PTR(ret);
+ goto out;
+ }
+
if (board_wants_dummy_regulator) {
rdev = dummy_regulator_rdev;
goto found;
@@ -3512,7 +3521,14 @@ regulator_register(const struct regulator_desc *regulator_desc,
r = regulator_dev_lookup(dev, supply, &ret);
- if (!r) {
+ if (ret == -ENODEV) {
+ /*
+ * No supply was specified for this regulator and
+ * there will never be one.
+ */
+ ret = 0;
+ goto add_dev;
+ } else if (!r) {
dev_err(dev, "Failed to find supply %s\n", supply);
ret = -EPROBE_DEFER;
goto scrub;
@@ -3530,6 +3546,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
}
}
+add_dev:
/* add consumers devices */
if (init_data) {
for (i = 0; i < init_data->num_consumer_supplies; i++) {