From: Aric Cyr <[email protected]> [ Upstream commit 2b63d0ec0daf79ba503fa8bfa25e07dc3da274f3 ]
[Why] Engine can be NULL in some cases, so we must not acquire it. [How] Check for NULL engine before acquiring. Signed-off-by: Aric Cyr <[email protected]> Reviewed-by: Harry Wentland <[email protected]> Acked-by: Bhawanpreet Lakha <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index 793c0cec407f9..5fcffb29317e3 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -398,7 +398,7 @@ static bool acquire( { enum gpio_result result; - if (!is_engine_available(engine)) + if ((engine == NULL) || !is_engine_available(engine)) return false; result = dal_ddc_open(ddc, GPIO_MODE_HARDWARE, -- 2.20.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
