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authorSergei Shtylyov <sergei.shtylyov@cogentembedded.com>2017-07-23 22:41:45 +0300
committerRob Herring <robh@kernel.org>2017-07-24 10:00:34 -0500
commit56134e3c649b97085df50fe85ae479e3d3a87d7f (patch)
treef4145ab8742f9d4d1cc3fe2d4c87a10a7ee18bf2 /drivers/of
parentb0d9d92f9ce60cd070a62c136914e6fe9d20d49d (diff)
downloadlinux-56134e3c649b97085df50fe85ae479e3d3a87d7f.tar.bz2
of_pci: use of_property_read_u32()
of_get_pci_domain_nr() somehow didn't use of_property_read_u32() though it was long available, basically open-coding it. Using the modern DT API saves several LoCs/bytes and also adds some prop sanity checks as a bonus... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/of_pci.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
index 3d4cb7090878..0162e4ba30e2 100644
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -105,17 +105,14 @@ EXPORT_SYMBOL_GPL(of_pci_parse_bus_range);
*/
int of_get_pci_domain_nr(struct device_node *node)
{
- const __be32 *value;
- int len;
- u16 domain;
-
- value = of_get_property(node, "linux,pci-domain", &len);
- if (!value || len < sizeof(*value))
- return -EINVAL;
+ u32 domain;
+ int error;
- domain = (u16)be32_to_cpup(value);
+ error = of_property_read_u32(node, "linux,pci-domain", &domain);
+ if (error)
+ return error;
- return domain;
+ return (u16)domain;
}
EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);