[EXT] [PATCH v2 3/9] trace: fix leak with regexp

[Sunil Kumar Kori]

> -----Original Message-----
> From: David Marchand <david.marchand at redhat.com>
> Sent: Tuesday, October 4, 2022 3:14 PM
> To: dev at dpdk.org
> Cc: skori at mavell.com; Jerin Jacob Kollanukkaran <jerinj at marvell.com>;
> stable at dpdk.org; Sunil Kumar Kori <skori at marvell.com>
> Subject: [EXT] [PATCH v2 3/9] trace: fix leak with regexp
> 
> External Email
> 
> ----------------------------------------------------------------------
> The precompiled buffer initialised in regcomp must be freed before leaving
> rte_trace_regexp.
> 
> Fixes: 84c4fae4628f ("trace: implement operation APIs")
> Cc: stable at dpdk.org
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---
> Changes since v1:
> - split patch in two, keeping only the backportable fix as patch 3,
> 
> ---
>  lib/eal/common/eal_common_trace.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 

Acked-by: Sunil Kumar Kori <skori at marvell.com>

> diff --git a/lib/eal/common/eal_common_trace.c
> b/lib/eal/common/eal_common_trace.c
> index 1b86f5d2d2..1db11e3e14 100644
> --- a/lib/eal/common/eal_common_trace.c
> +++ b/lib/eal/common/eal_common_trace.c
> @@ -218,8 +218,10 @@ rte_trace_regexp(const char *regex, bool enable)
>  				rc = rte_trace_point_disable(tp->handle);
>  			found = 1;
>  		}
> -		if (rc < 0)
> -			return rc;
> +		if (rc < 0) {
> +			found = 0;
> +			break;
> +		}
>  	}
>  	regfree(&r);
> 
> --
> 2.37.3