[dpdk-dev] [PATCH v2] cmdline: check return value at initialization
Olivier Matz
olivier.matz at 6wind.com
Tue May 17 10:36:57 CEST 2016
From: Marcin Kerlin <marcinx.kerlin at intel.com>
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.
Fixes: af75078fece3 ("first public release")
Coverity ID 13204
Signed-off-by: Marcin Kerlin <marcinx.kerlin at intel.com>
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
Hi Marcin,
I updated the commit log and title to be clearer.
Regards,
Olivier
v1 -> v2
rework title and commit log
lib/librte_cmdline/cmdline.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/lib/librte_cmdline/cmdline.c b/lib/librte_cmdline/cmdline.c
index c405878..a9c47be 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);
--
2.8.0.rc3
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