Messages in this thread Patch in this message | | | From | Lars-Peter Clausen <> | Subject | [PATCH v3 01/16] power_supply: Ignore -ENODATA errors when generating uevents | Date | Tue, 22 Feb 2011 07:37:46 +0100 |
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Sometimes a driver can not report a meaningful value for a certain property and returns -ENODATA.
Currently when generating a uevent and a property return -ENODATA it is treated as an error an no uevent is generated at all. This is not an desirable behavior.
This patch adds a special case for -ENODATA and ignores properties which return this error code when generating the uevent.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/power_supply_sysfs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index cd1f907..605514a 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -270,7 +270,7 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env) attr = &power_supply_attrs[psy->properties[j]]; ret = power_supply_show_property(dev, attr, prop_buf); - if (ret == -ENODEV) { + if (ret == -ENODEV || ret == -ENODATA) { /* When a battery is absent, we expect -ENODEV. Don't abort; send the uevent with at least the the PRESENT=0 property */ ret = 0; -- 1.7.2.3
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