V4L/DVB: v4l: mem2mem_testdev: fix g_fmt NULL pointer dereference

Calling g_fmt before s_fmt resulted in a NULL pointer dereference as no
default formats were being selected on probe.

Reported-by: Németh Márton <nm127@freemail.hu>
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c
index 554eaf1..10ddecc 100644 (file)
--- a/drivers/media/video/mem2mem_testdev.c
+++ b/drivers/media/video/mem2mem_testdev.c
@@ -988,6 +988,9 @@ static int m2mtest_probe(struct platform_device *pdev)
                goto err_m2m;
        }
 
+       q_data[V4L2_M2M_SRC].fmt = &formats[0];
+       q_data[V4L2_M2M_DST].fmt = &formats[0];
+
        return 0;
 
 err_m2m: