diff options
Diffstat (limited to 'drivers/power/supply/power_supply_core.c')
| -rw-r--r-- | drivers/power/supply/power_supply_core.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index feac7b066e6c..f57ab0a27301 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -19,6 +19,7 @@ #include <linux/err.h> #include <linux/of.h> #include <linux/power_supply.h> +#include <linux/property.h> #include <linux/thermal.h> #include "power_supply.h" @@ -843,12 +844,21 @@ __power_supply_register(struct device *parent, { struct device *dev; struct power_supply *psy; - int rc; + int i, rc; if (!parent) pr_warn("%s: Expected proper parent device for '%s'\n", __func__, desc->name); + if (!desc || !desc->name || !desc->properties || !desc->num_properties) + return ERR_PTR(-EINVAL); + + for (i = 0; i < desc->num_properties; ++i) { + if ((desc->properties[i] == POWER_SUPPLY_PROP_USB_TYPE) && + (!desc->usb_types || !desc->num_usb_types)) + return ERR_PTR(-EINVAL); + } + psy = kzalloc(sizeof(*psy), GFP_KERNEL); if (!psy) return ERR_PTR(-ENOMEM); @@ -865,7 +875,8 @@ __power_supply_register(struct device *parent, psy->desc = desc; if (cfg) { psy->drv_data = cfg->drv_data; - psy->of_node = cfg->of_node; + psy->of_node = + cfg->fwnode ? to_of_node(cfg->fwnode) : cfg->of_node; psy->supplied_to = cfg->supplied_to; psy->num_supplicants = cfg->num_supplicants; } |