pstore: add a helper function pstore_register_kmsg

Add a new wrapper function pstore_register_kmsg to keep the
consistency with other similar pstore_register_* functions.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 791743d..1b11249 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -353,6 +353,11 @@
 	.dump = pstore_dump,
 };
 
+static void pstore_register_kmsg(void)
+{
+	kmsg_dump_register(&pstore_dumper);
+}
+
 #ifdef CONFIG_PSTORE_CONSOLE
 static void pstore_console_write(struct console *con, const char *s, unsigned c)
 {
@@ -442,7 +447,7 @@
 	if (pstore_is_mounted())
 		pstore_get_records(0);
 
-	kmsg_dump_register(&pstore_dumper);
+	pstore_register_kmsg();
 
 	if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) {
 		pstore_register_console();