[media] s5p-fimc: Fail driver probing when sensor configuration is wrong

When a sensor with MIPI-CSI interface is attached through platform
data definition and the MIPI-CSI receiver is not selected in kernel
configuration s5p-fimc driver probe() will now succeed, issuing only
a warning. It was done this way to allow the driver to work even if
system configuration is not exactly right.

Instead make the driver's probe() fail if a MIPI-CSI sensor was
requested but s5p-csis module is not present.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@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/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index fc81f6f..615c862 100644 (file)
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -514,7 +514,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
                        if (WARN(csis == NULL,
                                 "MIPI-CSI interface specified "
                                 "but s5p-csis module is not loaded!\n"))
-                               continue;
+                               return -EINVAL;
 
                        ret = media_entity_create_link(&sensor->entity, 0,
                                              &csis->entity, CSIS_PAD_SINK,