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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-10-11 11:06:13 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-10-11 22:16:37 +0300
commit51858a2777f025333c5ac3b3484263bba56461b3 (patch)
treee70003f60ad317b651c2661f5d1eb7e0265412a3 /drivers/acpi/property.c
parentc343bc2ce2c627b6cef2b09794a4a5b63419a798 (diff)
downloadlinux-51858a2777f025333c5ac3b3484263bba56461b3.tar.xz
ACPI: properties: Fix __acpi_node_get_property_reference() return codes
Fix more return codes for device property: Align return codes of __acpi_node_get_property_reference(). In particular, what was missed previously: -EPROTO could be returned in certain cases, now -EINVAL; -EINVAL was returned if the property was not found, now -ENOENT; -EINVAL was returned also if the index was higher than the number of entries in a package, now -ENOENT. Reported-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Fixes: 3e3119d3088f (device property: Introduce fwnode_property_get_reference_args) Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/property.c')
-rw-r--r--drivers/acpi/property.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 5a8ac5e1081b..e26ea209b63e 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -593,7 +593,7 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
ret = acpi_data_get_property(data, propname, ACPI_TYPE_ANY, &obj);
if (ret)
- return ret;
+ return ret == -EINVAL ? -ENOENT : -EINVAL;
/*
* The simplest case is when the value is a single reference. Just
@@ -605,7 +605,7 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
ret = acpi_bus_get_device(obj->reference.handle, &device);
if (ret)
- return ret;
+ return ret == -ENODEV ? -EINVAL : ret;
args->adev = device;
args->nargs = 0;
@@ -621,8 +621,10 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
* The index argument is then used to determine which reference
* the caller wants (along with the arguments).
*/
- if (obj->type != ACPI_TYPE_PACKAGE || index >= obj->package.count)
- return -EPROTO;
+ if (obj->type != ACPI_TYPE_PACKAGE)
+ return -EINVAL;
+ if (index >= obj->package.count)
+ return -ENOENT;
element = obj->package.elements;
end = element + obj->package.count;