rgw/rgw_rest.cc: fix 4K memory leak

Fix 4K memory leak in case RGWClientIO::read() fails in
read_all_chunked_input().

Error from cppcheck was:
Checking src/rgw/rgw_rest.cc...
[src/rgw/rgw_rest.cc:688]: (error) Memory leak: data

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

diff --git a/src/rgw/rgw_rest.cc b/src/rgw/rgw_rest.cc
index 72aab14c522b9ff900e16881f17c0912d9ed1680..ab3927e7a627b0e94ada2d3dfdfda5e57a6f111e 100644 (file)
--- a/src/rgw/rgw_rest.cc
+++ b/src/rgw/rgw_rest.cc
@@ -684,8 +684,10 @@ static int read_all_chunked_input(req_state *s, char **pdata, int *plen)
   int read_len = 0, len = 0;
   do {
     int r = s->cio->read(data + len, need_to_read, &read_len);
-    if (r < 0)
+    if (r < 0) {
+      free(data);
       return r;
+    }
 
     len += read_len;