[S390] Remove BUG() statement

To avoid ugly warings for older gccs, we replace
BUG() with "return NULL", which is just as well.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index a241042..ee6826a 100644 (file)
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -91,7 +91,7 @@ static char *shutdown_action_str(enum shutdown_action action)
        case SHUTDOWN_STOP:
                return SHUTDOWN_STOP_STR;
        default:
-               BUG();
+               return NULL;
        }
 }