[syslinux:elflink] bufprintf: Add va_end() for our va_copy()

[syslinux-bot for Matt Fleming]

Commit-ID:  6f50d20ba362315dea4ecaf44336c3aaa4284975
Gitweb:     http://www.syslinux.org/commit/6f50d20ba362315dea4ecaf44336c3aaa4284975
Author:     Matt Fleming <matt.fleming at intel.com>
AuthorDate: Thu, 15 Nov 2012 20:39:30 +0000
Committer:  Matt Fleming <matt.fleming at intel.com>
CommitDate: Thu, 15 Nov 2012 20:39:30 +0000

bufprintf: Add va_end() for our va_copy()

According to the stdarg(3) man page each invocation of va_copy()
should be paired with an invocation of va_end().

Cc: Erwan Velu <erwanaliasr1 at gmail.com>
Signed-off-by: Matt Fleming <matt.fleming at intel.com>

---
 com32/lib/bufprintf.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/com32/lib/bufprintf.c b/com32/lib/bufprintf.c
index 939bcec..d281231 100644
--- a/com32/lib/bufprintf.c
+++ b/com32/lib/bufprintf.c
@@ -17,8 +17,10 @@ int vbufprintf(struct print_buf *buf, const char *format, va_list ap)
 	char *newbuf;
 
 	newbuf = realloc(buf->buf, newsize);
-	if (!newbuf)
-	    return -1;
+	if (!newbuf) {
+	    rv = -1;
+	    goto bail;
+	}
 
 	buf->buf = newbuf;
 	buf->size = newsize;
@@ -26,6 +28,8 @@ int vbufprintf(struct print_buf *buf, const char *format, va_list ap)
 
     rv = vsnprintf(buf->buf + buf->len, buf->size - buf->len, format, ap2);
     buf->len += rv;
+bail:
+    va_end(ap2);
     return rv;
 }