On Fri, 2015-10-16 at 08:20 +0200, Christophe JAILLET wrote: > Le 15/10/2015 08:36, Michael Ellerman a écrit : > > On Thu, 2015-10-15 at 07:56 +0200, Christophe JAILLET wrote: > > > Use 'of_property_read_u32()' instead of > > > 'of_get_property()'+pointer > > > dereference in order to avoid access to potentially freed memory. > > > > > > Use 'of_get_next_parent()' to simplify the while() loop and avoid > > > the > > > need of a temp variable. > > > > > > Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr> > > > --- > > > v2: Use of_property_read_u32 instead of of_get_property+pointer > > > dereference > > > *** Untested *** > > Thanks. > > > > Can someone with an mpc5xxx test this? > > Hi, > I don't think it is an issue, but while looking at another similar > patch, I noticed that the proposed patch adds a call to > be32_to_cpup() > (within of_property_read_u32). > Apparently, powerPC is a BE architecture, so this call should be a no > -op. > > Just wanted to point it out, in case of.
Hi Christoph, I'm not sure I follow. The device tree is always big endian, but of_property_read_u32() does the conversion to CPU endian for you already. That is one of the advantages of using it. cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
