drivers: base: Convert print_symbol to %pSR

Use the new vsprintf extension to avoid any possible
message interleaving.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 27603a6..2937c63 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -97,8 +97,8 @@
 	if (dev_attr->show)
 		ret = dev_attr->show(dev, dev_attr, buf);
 	if (ret >= (ssize_t)PAGE_SIZE) {
-		print_symbol("dev_attr_show: %s returned bad count\n",
-				(unsigned long)dev_attr->show);
+		printk("dev_attr_show: %pSR returned bad count\n",
+		       dev_attr->show);
 	}
 	return ret;
 }