[PATCH] win32: plug memory leak on realloc() failure in syslog()

[René Scharfe]

If realloc() fails then the original buffer is still valid.  Free it
before exiting the function.

Signed-off-by: Rene Scharfe <l....@web.de>
---
 compat/win32/syslog.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compat/win32/syslog.c b/compat/win32/syslog.c
index 6c7c9b6053..161978d720 100644
--- a/compat/win32/syslog.c
+++ b/compat/win32/syslog.c
@@ -43,8 +43,10 @@ void syslog(int priority, const char *fmt, ...)
        va_end(ap);
 
        while ((pos = strstr(str, "%1")) != NULL) {
+               char *oldstr = str;
                str = realloc(str, st_add(++str_len, 1));
                if (!str) {
+                       free(oldstr);
                        warning_errno("realloc failed");
                        return;
                }
-- 
2.14.0