On Wed, 15 Jul 2015, Tony Lindgren wrote: > * Paul Walmsley <paul@xxxxxxxxx> [150715 22:58]: > > Hello Markus > > > > On Tue, 30 Jun 2015, SF Markus Elfring wrote: > > > > > From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> > > > Date: Tue, 30 Jun 2015 14:00:16 +0200 > > > > > > The functions clk_disable(), of_node_put() and omap_device_delete() test > > > whether their argument is NULL and then return immediately. > > > Thus the test around the call is not needed. > > > > > > This issue was detected by using the Coccinelle software. > > > > > > Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> > > > > Thanks for the patch. I have to say, I am a bit leery about applying the > > omap_device.c and omap_hwmod.c changes, since the called functions -- > > omap_device_delete() and clk_disable() -- don't explicitly document that > > NULLs are allowed to be passed in. So there's no explicit contract that > > callers can rely upon, to (at least in theory) prevent those internal NULL > > pointer checks from being removed. > > > > So I would suggest that those two functions' kerneldoc be patched first to > > explicitly state that passing in a NULL pointer is allowed. Then I would > > feel a bit more comfortable applying the omap_device.c and omap_hwmod.c > > changes. > > > > The kerneldoc for of_node_put() does explicitly allow NULLs to be passed > > in. So I'll apply that change now for v4.3, touching up the commit > > message accordingly. > > I have them applied from a later thread already, but will drop both in > my branch as I have not pushed them out yet. Oops sorry about stepping on your toes - I obviously missed that followup. - Paul -- 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
