[PATCH i-g-t v3 1/2] lib/igt_chamelium: check drmModeGetConnector() before using

[Kamil Konieczny]

Hi Luca,
On 2024-05-30 at 11:59:07 +0300, Luca Coelho wrote:
> The drmModeGetConnector() function can return NULL in some cases, so
> we need to check the return value before accessing it.  This is not
> being checked in wait_for_connected_state(), so fix that.
> 
> Cc: Mark Yacoub <markyacoub at chromium.org>
> Cc: Manasi Navare <navaremanasi at chromium.org>
> Cc: Kamil Konieczny <kamil.konieczny at linux.intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho at intel.com>

Reviewed-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>

> ---
>  lib/igt_chamelium.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c
> index 016d5356630c..620fbbf7d94f 100644
> --- a/lib/igt_chamelium.c
> +++ b/lib/igt_chamelium.c
> @@ -524,6 +524,11 @@ static bool wait_for_connected_state(int drm_fd,
>  			drmModeConnector *connector =
>  				drmModeGetConnector(drm_fd, connectors[i]);
>  
> +			if (!connector) {
> +				connected = false;
> +				break;
> +			}
> +
>  			connected = connector->connection == DRM_MODE_CONNECTED;
>  
>  			drmModeFreeConnector(connector);
> -- 
> 2.39.2
>