From: Daniel Vetter <daniel.vet...@ffwll.ch> [ Upstream commit 075342ea3d93044d68f821cf91c1a1a7d2fa569e ]
Gets rid of drmm_add_final_kfree, which I want to unexport so that it stops confusion people about this transitional state of rolling drm managed memory out. This also fixes the missing drm_dev_put in the error path of the probe code. v2: Drop the misplaced drm_dev_put from zynqmp_dpsub_drm_init (all other paths leaked on error, this should have been in zynqmp_dpsub_probe), now that subsumed by the auto-cleanup of devm_drm_dev_alloc. Reviewed-by: Hyun Kwon <hyun.k...@xilinx.com> Signed-off-by: Daniel Vetter <daniel.vet...@intel.com> Cc: Hyun Kwon <hyun.k...@xilinx.com> Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com> Cc: Michal Simek <michal.si...@xilinx.com> Cc: linux-arm-ker...@lists.infradead.org Link: https://patchwork.freedesktop.org/patch/msgid/20200907082225.150837-1-daniel.vet...@ffwll.ch Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 27 ++++++--------------------- 1 file changed, 6 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 26328c76305be..8e69303aad3f7 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -111,7 +111,7 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) /* Initialize mode config, vblank and the KMS poll helper. */ ret = drmm_mode_config_init(drm); if (ret < 0) - goto err_dev_put; + return ret; drm->mode_config.funcs = &zynqmp_dpsub_mode_config_funcs; drm->mode_config.min_width = 0; @@ -121,7 +121,7 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) ret = drm_vblank_init(drm, 1); if (ret) - goto err_dev_put; + return ret; drm->irq_enabled = 1; @@ -154,8 +154,6 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) err_poll_fini: drm_kms_helper_poll_fini(drm); -err_dev_put: - drm_dev_put(drm); return ret; } @@ -208,27 +206,16 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev) int ret; /* Allocate private data. */ - dpsub = kzalloc(sizeof(*dpsub), GFP_KERNEL); - if (!dpsub) - return -ENOMEM; + dpsub = devm_drm_dev_alloc(&pdev->dev, &zynqmp_dpsub_drm_driver, + struct zynqmp_dpsub, drm); + if (IS_ERR(dpsub)) + return PTR_ERR(dpsub); dpsub->dev = &pdev->dev; platform_set_drvdata(pdev, dpsub); dma_set_mask(dpsub->dev, DMA_BIT_MASK(ZYNQMP_DISP_MAX_DMA_BIT)); - /* - * Initialize the DRM device early, as the DRM core mandates usage of - * the managed memory helpers tied to the DRM device. - */ - ret = drm_dev_init(&dpsub->drm, &zynqmp_dpsub_drm_driver, &pdev->dev); - if (ret < 0) { - kfree(dpsub); - return ret; - } - - drmm_add_final_kfree(&dpsub->drm, dpsub); - /* Try the reserved memory. Proceed if there's none. */ of_reserved_mem_device_init(&pdev->dev); @@ -286,8 +273,6 @@ static int zynqmp_dpsub_remove(struct platform_device *pdev) clk_disable_unprepare(dpsub->apb_clk); of_reserved_mem_device_release(&pdev->dev); - drm_dev_put(drm); - return 0; } -- 2.25.1
