On Tue, Sep 27, 2011 at 01:10:04PM +0100, Mark Brown wrote: > On Tue, Sep 27, 2011 at 03:42:45PM +0530, Rajendra Nayak wrote: > > > + init_data = devm_kzalloc(dev, sizeof(struct regulator_init_data), > > + GFP_KERNEL); > > + if (!init_data) > > + return NULL; /* Out of memory? */ > > This means that the init data will be kept around for the entire > lifetime of the device rather than being discarded. May I remind you that devm_* lifetime expires whenever the associated driver is unbound, which can be much shorter than the lifetime of the struct device. It expires when any of the following occurs: 1. userspace asks the associated driver to be unbound 2. the driver is removed 3. any driver probe for this struct device fails 4. the struct device is unregistered. So: don't use devm_* for anything other than stuff inside a driver being associated with the struct device itself. Other uses are a bug waiting to happen. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
