Xiubo Li 42ccd781bb of: Fix __of_device_is_available check ... From IEEE 1275, there defined a standard 'status' property indicating the operational status of one device. The 'status' property has four possible values: 'okay/ok', 'disabled', 'fail' and 'fail-xxx'. If it is absent, that means the status of the device is unknown or okay. The __of_device_is_available checks the state of the 'status' property of a device. If the property is absent or set to 'okay/ok', it returns 1. Otherwise it returns 0. While in __of_device_is_available: > status = of_get_property(device, "status", &statlen); > if (status == NULL) > return 1; The status value returned from 'of_get_property()' will be NULL in two cases: Firstly: the 'device' value (device node) is NULL. Secondly: the 'status' property is actaully not exist. If the device node is NULL, the __of_device_is_available will return true, that will mean the absent state of the 'status' property. So this add the device node check before checking the 'status' property's state, and if the device node is not exist, 0 will be returned. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>		2014-01-16 17:29:24 +00:00
..
address.c
base.c	of: Fix __of_device_is_available check	2014-01-16 17:29:24 +00:00
device.c
fdt.c
irq.c	of/irq: Fix device_node refcount in of_irq_parse_raw()	2013-12-30 10:23:27 -06:00
Kconfig
Makefile
of_mdio.c
of_mtd.c
of_net.c
of_pci_irq.c
of_pci.c
of_private.h
pdt.c
platform.c
selftest.c