util: fix asprintf() fallback

Fixes: 9607d499dcdd09160b13 ("util: add asprintf() wrapper for MSVC")
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

diff --git a/src/util/u_string.h b/src/util/u_string.h
index e716392..5fea8f1 100644 (file)
--- a/src/util/u_string.h
+++ b/src/util/u_string.h
@@ -99,16 +99,15 @@ util_vasprintf(char **ret, const char *format, va_list ap)
 }
 
 #define asprintf util_asprintf
-static inline char *
-util_asprintf(const char *fmt, ...)
+static inline int
+util_asprintf(char **str, const char *fmt, ...)
 {
-   char *ptr;
+   int ret;
    va_list args;
    va_start(args, fmt);
-   if (vasprintf(&ptr, fmt, args) == -1)
-      ptr = NULL;
+   ret = vasprintf(str, fmt, args);
    va_end(args);
-   return ptr;
+   return ret;
 }
 
 #define strcasecmp stricmp