From ea1f89593045cdccbd2fdcbddb4f8cd34ee29125 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Tue, 31 Dec 2024 20:04:34 +0100 Subject: [PATCH] media: mmp: Bring back registration of the device BugLink: https://bugs.launchpad.net/bugs/2114239 commit fbb5298bf1a7b71723cd2bb193642429ceb0fb84 upstream. In commit 4af65141e38e ("media: marvell: cafe: Register V4L2 device earlier"), a call to v4l2_device_register() was moved away from mccic_register() into its caller, marvell/cafe's cafe_pci_probe(). This is not the only caller though -- there's also marvell/mmp. Add v4l2_device_register() into mmpcam_probe() to unbreak the MMP camera driver, in a fashion analogous to what's been done to the Cafe driver. Same for the teardown path. Fixes: 4af65141e38e ("media: marvell: cafe: Register V4L2 device earlier") Signed-off-by: Lubomir Rintel Cc: stable@vger.kernel.org # v6.6+ Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman Signed-off-by: Noah Wager Signed-off-by: Mehmet Basaran --- drivers/media/platform/marvell/mmp-driver.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/marvell/mmp-driver.c b/drivers/media/platform/marvell/mmp-driver.c index 170907cc1885..f8d595c0687f 100644 --- a/drivers/media/platform/marvell/mmp-driver.c +++ b/drivers/media/platform/marvell/mmp-driver.c @@ -230,13 +230,23 @@ static int mmpcam_probe(struct platform_device *pdev) mcam_init_clk(mcam); + /* + * Register with V4L. + */ + + ret = v4l2_device_register(mcam->dev, &mcam->v4l2_dev); + if (ret) + return ret; + /* * Create a match of the sensor against its OF node. */ ep = fwnode_graph_get_next_endpoint(of_fwnode_handle(pdev->dev.of_node), NULL); - if (!ep) - return -ENODEV; + if (!ep) { + ret = -ENODEV; + goto out_v4l2_device_unregister; + } v4l2_async_nf_init(&mcam->notifier, &mcam->v4l2_dev); @@ -245,7 +255,7 @@ static int mmpcam_probe(struct platform_device *pdev) fwnode_handle_put(ep); if (IS_ERR(asd)) { ret = PTR_ERR(asd); - goto out; + goto out_v4l2_device_unregister; } /* @@ -253,7 +263,7 @@ static int mmpcam_probe(struct platform_device *pdev) */ ret = mccic_register(mcam); if (ret) - goto out; + goto out_v4l2_device_unregister; /* * Add OF clock provider. @@ -282,6 +292,8 @@ static int mmpcam_probe(struct platform_device *pdev) return 0; out: mccic_shutdown(mcam); +out_v4l2_device_unregister: + v4l2_device_unregister(&mcam->v4l2_dev); return ret; } @@ -292,6 +304,7 @@ static void mmpcam_remove(struct platform_device *pdev) struct mcam_camera *mcam = &cam->mcam; mccic_shutdown(mcam); + v4l2_device_unregister(&mcam->v4l2_dev); pm_runtime_force_suspend(mcam->dev); }