[dpdk-dev,v2,3/6] test: fix memory leak in ring autotest

  Get rid of global static ring variable and don't reuse rings
between test runs.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 test/test/test_ring.c | 61 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 28 deletions(-)
  

On 17-Jan-18 8:36 AM, Anatoly Burakov wrote:
> Get rid of global static ring variable and don't reuse rings
> between test runs.
> 
> Fixes: af75078fece3 ("first public release")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> ---
>   test/test/test_ring.c | 61 ++++++++++++++++++++++++++++-----------------------
>   1 file changed, 33 insertions(+), 28 deletions(-)
> 
> diff --git a/test/test/test_ring.c b/test/test/test_ring.c
> index 19d497a..b339f04 100644
> --- a/test/test/test_ring.c
> +++ b/test/test/test_ring.c
> @@ -57,8 +57,6 @@
>   
>   static rte_atomic32_t synchro;
>   
> -static struct rte_ring *r;
> -
>   #define	TEST_RING_VERIFY(exp)						\
>   	if (!(exp)) {							\
>   		printf("error at %s:%d\tcondition " #exp " failed\n",	\
> @@ -73,7 +71,7 @@ static struct rte_ring *r;
>    * helper routine for test_ring_basic
>    */
>   static int
> -test_ring_basic_full_empty(void * const src[], void *dst[])
> +test_ring_basic_full_empty(struct rte_ring *r, void * const src[], void *dst[])
>   {
>   	unsigned i, rand;
>   	const unsigned rsz = RING_SIZE - 1;
> @@ -114,7 +112,7 @@ test_ring_basic_full_empty(void * const src[], void *dst[])
>   }
>   
>   static int
> -test_ring_basic(void)
> +test_ring_basic(struct rte_ring *r)
>   {
>   	void **src = NULL, **cur_src = NULL, **dst = NULL, **cur_dst = NULL;
>   	int ret;
> @@ -250,7 +248,7 @@ test_ring_basic(void)
>   		goto fail;
>   	}
>   
> -	if (test_ring_basic_full_empty(src, dst) != 0)
> +	if (test_ring_basic_full_empty(r, src, dst) != 0)
>   		goto fail;
>   
>   	cur_src = src;
> @@ -317,7 +315,7 @@ test_ring_basic(void)
>   }
>   
>   static int
> -test_ring_burst_basic(void)
> +test_ring_burst_basic(struct rte_ring *r)
>   {
>   	void **src = NULL, **cur_src = NULL, **dst = NULL, **cur_dst = NULL;
>   	int ret;
> @@ -731,6 +729,7 @@ test_ring_basic_ex(void)
>   
>   	ret = 0;
>   fail_test:
> +	rte_ring_free(rp);
>   	if (obj != NULL)
>   		rte_free(obj);
>   
> @@ -811,61 +810,67 @@ test_ring_with_exact_size(void)
>   static int
>   test_ring(void)
>   {
> +	struct rte_ring *r = NULL;
> +
>   	/* some more basic operations */
>   	if (test_ring_basic_ex() < 0)
> -		return -1;
> +		goto test_fail;
>   
>   	rte_atomic32_init(&synchro);
>   
> +	r = rte_ring_create("test", RING_SIZE, SOCKET_ID_ANY, 0);
>   	if (r == NULL)
> -		r = rte_ring_create("test", RING_SIZE, SOCKET_ID_ANY, 0);
> -	if (r == NULL)
> -		return -1;
> +		goto test_fail;
>   
>   	/* retrieve the ring from its name */
>   	if (rte_ring_lookup("test") != r) {
>   		printf("Cannot lookup ring from its name\n");
> -		return -1;
> +		goto test_fail;
>   	}
>   
>   	/* burst operations */
> -	if (test_ring_burst_basic() < 0)
> -		return -1;
> +	if (test_ring_burst_basic(r) < 0)
> +		goto test_fail;
>   
>   	/* basic operations */
> -	if (test_ring_basic() < 0)
> -		return -1;
> +	if (test_ring_basic(r) < 0)
> +		goto test_fail;
>   
>   	/* basic operations */
>   	if ( test_create_count_odd() < 0){
> -			printf ("Test failed to detect odd count\n");
> -			return -1;
> -		}
> -		else
> -			printf ( "Test detected odd count\n");
> +		printf("Test failed to detect odd count\n");
> +		goto test_fail;
> +	} else
> +		printf("Test detected odd count\n");
>   
>   	if ( test_lookup_null() < 0){
> -				printf ("Test failed to detect NULL ring lookup\n");
> -				return -1;
> -			}
> -			else
> -				printf ( "Test detected NULL ring lookup \n");
> +		printf("Test failed to detect NULL ring lookup\n");
> +		goto test_fail;
> +	} else
> +		printf("Test detected NULL ring lookup\n");
>   
>   	/* test of creating ring with wrong size */
>   	if (test_ring_creation_with_wrong_size() < 0)
> -		return -1;
> +		goto test_fail;
>   
>   	/* test of creation ring with an used name */
>   	if (test_ring_creation_with_an_used_name() < 0)
> -		return -1;
> +		goto test_fail;
>   
>   	if (test_ring_with_exact_size() < 0)
> -		return -1;
> +		goto test_fail;
>   
>   	/* dump the ring status */
>   	rte_ring_list_dump(stdout);
>   
> +	rte_ring_free(r);
> +
>   	return 0;
> +
> +test_fail:
> +	rte_ring_free(r);
> +
> +	return -1;
>   }
>   
>   REGISTER_TEST_COMMAND(ring_autotest, test_ring);
> 

Apologies, for some reason the old and incorrect commit message was 
attached. I'll respin it.