[PATCH 5/6] Annotate internal_error with the attribute noreturn

[Justus Winter <4winter@informatik.uni-hamburg.de>]

Annotating functions that do not return with the noreturn attribute
(which is understood by both gcc and clang) prevents static analyzers
from generating false positives (internal_error is used to terminate
the process and is used extensively in error handling code paths).

Remove the return statement that was placed there to appease the
compiler. Functions annotated with noreturn are not supposed to return
any values.

Signed-off-by: Justus Winter <4winter@informatik.uni-hamburg.de>
---
 util/error_util.c |    4 +---
 util/error_util.h |    6 ++++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/util/error_util.c b/util/error_util.c
index 630d228..d6e60fc 100644
--- a/util/error_util.c
+++ b/util/error_util.c
@@ -24,7 +24,7 @@
 
 #include "error_util.h"
 
-int
+void
 _internal_error (const char *format, ...)
 {
     va_list va_args;
@@ -35,7 +35,5 @@ _internal_error (const char *format, ...)
     vfprintf (stderr, format, va_args);
 
     exit (1);
-
-    return 1;
 }
 
diff --git a/util/error_util.h b/util/error_util.h
index bb15822..17c8727 100644
--- a/util/error_util.h
+++ b/util/error_util.h
@@ -23,14 +23,16 @@
 
 #include <talloc.h>
 
+#include "function-attributes.h"
+
 /* There's no point in continuing when we've detected that we've done
  * something wrong internally (as opposed to the user passing in a
  * bogus value).
  *
  * Note that PRINTF_ATTRIBUTE comes from talloc.h
  */
-int
-_internal_error (const char *format, ...) PRINTF_ATTRIBUTE (1, 2);
+void
+_internal_error (const char *format, ...) PRINTF_ATTRIBUTE (1, 2) NORETURN_ATTRIBUTE;
 
 /* There's no point in continuing when we've detected that we've done
  * something wrong internally (as opposed to the user passing in a
-- 
1.7.10.4