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authorMark Brown <broonie@opensource.wolfsonmicro.com>2009-07-21 16:00:26 +0100
committerLiam Girdwood <lrg@slimlogic.co.uk>2009-09-22 13:32:39 +0100
commit9ed2099edca26d07947beb42c12bd1d6669e82bc (patch)
treed44cdc4f737636e03354cde612cc854b1f469eb6 /drivers
parent6bf87d17c9f5b855e9dde7b3d6f726385b966814 (diff)
downloadlinaro-lsk-9ed2099edca26d07947beb42c12bd1d6669e82bc.tar.gz
regulator: Fix support for deviceless supply mappings
The patch to add support for looking up consumers by device name had the side effect of causing us to require a device which is at best premature since at least cpufreq still operates outside the device model. Remove that requirement. Reported-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/regulator/core.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 79a6910eb89..e38db55600e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -872,6 +872,7 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
const char *supply)
{
struct regulator_map *node;
+ int has_dev;
if (consumer_dev && consumer_dev_name)
return -EINVAL;
@@ -882,6 +883,11 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
if (supply == NULL)
return -EINVAL;
+ if (consumer_dev_name != NULL)
+ has_dev = 1;
+ else
+ has_dev = 0;
+
list_for_each_entry(node, &regulator_map_list, list) {
if (consumer_dev_name != node->dev_name)
continue;
@@ -896,17 +902,19 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
return -EBUSY;
}
- node = kmalloc(sizeof(struct regulator_map), GFP_KERNEL);
+ node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL);
if (node == NULL)
return -ENOMEM;
node->regulator = rdev;
- node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
node->supply = supply;
- if (node->dev_name == NULL) {
- kfree(node);
- return -ENOMEM;
+ if (has_dev) {
+ node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
+ if (node->dev_name == NULL) {
+ kfree(node);
+ return -ENOMEM;
+ }
}
list_add(&node->list, &regulator_map_list);