[igt-dev] [PATCH i-g-t] chamelium: Fix analog bridge detection memory leak

[Lyude Paul]

Reviewed-by: Lyude Paul <lyude at redhat.com>

Do you need me to push this? Or do you have push access for igt nowadays?

On Wed, 2018-11-14 at 16:29 +0100, Paul Kocialkowski wrote:
> The connector and EDID blob retrieved when checking for analog bridges
> need to be freed before returning from the associated function.
> 
> Fixes: f8d6afa67 ("tests/chamelium: Detect analog bridges and handle
> EDID accordingly")
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
> ---
>  tests/kms_chamelium.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/kms_chamelium.c b/tests/kms_chamelium.c
> index e0e3e3f1..55b346a9 100644
> --- a/tests/kms_chamelium.c
> +++ b/tests/kms_chamelium.c
> @@ -175,8 +175,10 @@ check_analog_bridge(data_t *data, struct chamelium_port
> *port)
>  	unsigned char *edid;
>  	char edid_vendor[3];
>  
> -	if (chamelium_port_get_type(port) != DRM_MODE_CONNECTOR_VGA)
> +	if (chamelium_port_get_type(port) != DRM_MODE_CONNECTOR_VGA) {
> +		drmModeFreeConnector(connector);
>  		return false;
> +	}
>  
>  	igt_assert(kmstest_get_property(data->drm_fd, connector->connector_id,
>  					DRM_MODE_OBJECT_CONNECTOR, "EDID",
> NULL,
> @@ -191,14 +193,14 @@ check_analog_bridge(data_t *data, struct
> chamelium_port *port)
>  			  ((edid[9] & 0xe0) >> 5)) + '@';
>  	edid_vendor[2] = (edid[9] & 0x1f) + '@';
>  
> +	drmModeFreePropertyBlob(edid_blob);
> +	drmModeFreeConnector(connector);
> +
>  	/* Analog bridges provide their own EDID */
>  	if (edid_vendor[0] != 'I' || edid_vendor[1] != 'G' ||
>  	    edid_vendor[0] != 'T')
>  		return true;
>  
> -	drmModeFreePropertyBlob(edid_blob);
> -	drmModeFreeConnector(connector);
> -
>  	return false;
>  }
>  
-- 
Cheers,
	Lyude Paul