CRISv32: add unreachable() to BUG()

Add an unreachable() in the BUG() implementations, to get rid of
several warnings similar to the one below:

 kernel/sched/core.c: In function 'pick_next_task':
 kernel/sched/core.c:2690:1: warning: control reaches end of non-void function [-Wreturn-type]

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jespern@axis.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/arch/cris/include/arch-v32/arch/bug.h b/arch/cris/include/arch-v32/arch/bug.h
index 0f211e135248..fb59faaaae0a 100644
--- a/arch/cris/include/arch-v32/arch/bug.h
+++ b/arch/cris/include/arch-v32/arch/bug.h
@@ -10,6 +10,7 @@
  * All other stuff is done out-of-band with exception handlers.
  */
 #define BUG()                                                           \
+do {                                                                    \
         __asm__ __volatile__ ("0: break 14\n\t"                         \
                               ".section .fixup,\"ax\"\n"                \
                               "1:\n\t"                                  \
@@ -21,9 +22,15 @@
                               ".section __ex_table,\"a\"\n\t"           \
                               ".dword 0b, 1b\n\t"                       \
                               ".previous\n\t"                           \
-                              : : "ri" (__FILE__), "i" (__LINE__))
+                              : : "ri" (__FILE__), "i" (__LINE__));     \
+        unreachable();                          \
+} while (0)
 #else
-#define BUG() __asm__ __volatile__ ("break 14\n\t")
+#define BUG()                                   \
+do {                                            \
+        __asm__ __volatile__ ("break 14\n\t");  \
+        unreachable();                          \
+} while (0)
 #endif
 
 #define HAVE_ARCH_BUG