Fix com_lsblob().

In case no output was produced, don't access output data and don't free it.

diff --git a/blob.c b/blob.c
index 559564506e399d39c9a43123745c5941a9ee75da..c6b05b2b803d597de1f5294ba2c54f2790b1ceb6 100644 (file)
--- a/blob.c
+++ b/blob.c
@@ -138,9 +138,10 @@ static int com_lsblob(callback_function *f, int fd, int argc, char * const * con
                return -E_BLOB_SYNTAX;
        ret = send_option_arg_callback_request(&query, argc - i,
                argv + i, f, &ls_output);
-       if (ret >= 0 && ls_output.data)
+       if (ret > 0) {
                send_buffer(fd, (char *)ls_output.data);
-       free(ls_output.data);
+               free(ls_output.data);
+       }
        return ret;
 }