sound: usb: replace %p with %pK

Format specifier %p can leak kernel addresses while not valuing the
kptr_restrict system settings. When kptr_restrict is set to (1), kernel
pointers printed using the %pK format specifier will be replaced with 0's.
Debugging Note : &pK prints only Zeros as address. If you need actual
address information, write 0 to kptr_restrict.

echo 0 > /proc/sys/kernel/kptr_restrict

Change-Id: Iaf20ac2175295dee8745c48f8c208a78b84dea91
Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index c5251aa..70e1477 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -357,7 +357,7 @@
 		err = usb_submit_urb(ctx->urb, GFP_ATOMIC);
 		if (err < 0)
 			usb_audio_err(ep->chip,
-				"Unable to submit urb #%d: %d (urb %p)\n",
+				"Unable to submit urb #%d: %d (urb %pK)\n",
 				ctx->index, err, ctx->urb);
 		else
 			set_bit(ctx->index, &ep->active_mask);
@@ -459,7 +459,7 @@
 		    ep->iface == alts->desc.bInterfaceNumber &&
 		    ep->altsetting == alts->desc.bAlternateSetting) {
 			usb_audio_dbg(ep->chip,
-				      "Re-using EP %x in iface %d,%d @%p\n",
+				      "Re-using EP %x in iface %d,%d @%pK\n",
 					ep_num, ep->iface, ep->altsetting, ep);
 			goto __exit_unlock;
 		}