[PATCH] app/testpmd: fix memory leak for dscp table

[Morrissey, Sean]

Reviewed-by: Sean Morrissey <sean.morrissey at intel.com>

Thanks.

On 28/06/2022 14:29, Jasvinder Singh wrote:
> This patch fixes memory leak reported by coverity.
>
> Coverity issue: 379220
> Fixes: 9f5488e326d3 ("app/testpmd: support different input color method")
>
> Cc: stable at dpdk.org
>
> Signed-off-by: Jasvinder Singh <jasvinder.singh at intel.com>
> ---
>   app/test-pmd/cmdline_mtr.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/app/test-pmd/cmdline_mtr.c b/app/test-pmd/cmdline_mtr.c
> index b92e66cedb..833273da0d 100644
> --- a/app/test-pmd/cmdline_mtr.c
> +++ b/app/test-pmd/cmdline_mtr.c
> @@ -131,8 +131,10 @@ parse_input_color_table_entries(char *str, enum rte_color **dscp_table,
>   	/* Allocate memory for vlan table */
>   	vlan = (enum rte_color *)malloc(MAX_VLAN_TABLE_ENTRIES *
>   		sizeof(enum rte_color));
> -	if (vlan == NULL)
> +	if (vlan == NULL) {
> +		free(*dscp_table);
>   		return -1;
> +	}
>   
>   	i = 0;
>   	while (1) {
> @@ -144,6 +146,7 @@ parse_input_color_table_entries(char *str, enum rte_color **dscp_table,
>   			vlan[i++] = RTE_COLOR_RED;
>   		else {
>   			free(vlan);
> +			free(*dscp_table);
>   			return -1;
>   		}
>   		if (i == MAX_VLAN_TABLE_ENTRIES)
> @@ -152,6 +155,7 @@ parse_input_color_table_entries(char *str, enum rte_color **dscp_table,
>   		token = strtok_r(str, PARSE_DELIMITER, &str);
>   		if (token == NULL) {
>   			free(vlan);
> +			free(*dscp_table);
>   			return -1;
>   		}
>   	}