From: Marcin Kerlin <marcinx.kerlin@intel.com>
Date: Tue, 17 May 2016 08:36:57 +0000 (+0200)
Subject: cmdline: check initialization error
X-Git-Tag: spdx-start~6902
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=661d97ba0b56897c0eb21e61a8b12a5cc227f07e;p=dpdk.git

cmdline: check initialization error

The value returned by rdline_init() was not checked in cmdline_new().
On error, free the allocated memory and return NULL.

This condition should not happen today, but it's safer to do the check
in case rdline_init() is updated.

Coverity issue: 13204
Fixes: af75078fece3 ("first public release")

Signed-off-by: Marcin Kerlin <marcinx.kerlin@intel.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---

diff --git a/lib/librte_cmdline/cmdline.c b/lib/librte_cmdline/cmdline.c
index c405878ee8..a9c47be3c9 100644
--- a/lib/librte_cmdline/cmdline.c
+++ b/lib/librte_cmdline/cmdline.c
@@ -130,6 +130,7 @@ struct cmdline *
 cmdline_new(cmdline_parse_ctx_t *ctx, const char *prompt, int s_in, int s_out)
 {
 	struct cmdline *cl;
+	int ret;
 
 	if (!ctx || !prompt)
 		return NULL;
@@ -142,8 +143,13 @@ cmdline_new(cmdline_parse_ctx_t *ctx, const char *prompt, int s_in, int s_out)
 	cl->s_out = s_out;
 	cl->ctx = ctx;
 
-	rdline_init(&cl->rdl, cmdline_write_char,
-		    cmdline_valid_buffer, cmdline_complete_buffer);
+	ret = rdline_init(&cl->rdl, cmdline_write_char, cmdline_valid_buffer,
+			cmdline_complete_buffer);
+	if (ret != 0) {
+		free(cl);
+		return NULL;
+	}
+
 	cl->rdl.opaque = cl;
 	cmdline_set_prompt(cl, prompt);
 	rdline_newline(&cl->rdl, cl->prompt);