From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 830c1ded356369cd1303e8bb87ce3fea6e744de8 ]
If an error occurs after calling tegra_output_probe(), tegra_output_remove() should be called as already done in the remove function.
Fixes: dec727399a4b ("drm/tegra: Add DSI support") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Signed-off-by: Thierry Reding treding@nvidia.com Link: https://patchwork.freedesktop.org/patch/msgid/16820073278d031f6c474a08d5f22a... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/tegra/dsi.c | 54 ++++++++++++++++++++++++------------- 1 file changed, 35 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c index 04bf4c89d870e..44bf5a731ba72 100644 --- a/drivers/gpu/drm/tegra/dsi.c +++ b/drivers/gpu/drm/tegra/dsi.c @@ -1504,44 +1504,58 @@ static int tegra_dsi_probe(struct platform_device *pdev)
if (!pdev->dev.pm_domain) { dsi->rst = devm_reset_control_get(&pdev->dev, "dsi"); - if (IS_ERR(dsi->rst)) - return PTR_ERR(dsi->rst); + if (IS_ERR(dsi->rst)) { + err = PTR_ERR(dsi->rst); + goto remove; + } }
dsi->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(dsi->clk)) - return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk), - "cannot get DSI clock\n"); + if (IS_ERR(dsi->clk)) { + err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk), + "cannot get DSI clock\n"); + goto remove; + }
dsi->clk_lp = devm_clk_get(&pdev->dev, "lp"); - if (IS_ERR(dsi->clk_lp)) - return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp), - "cannot get low-power clock\n"); + if (IS_ERR(dsi->clk_lp)) { + err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp), + "cannot get low-power clock\n"); + goto remove; + }
dsi->clk_parent = devm_clk_get(&pdev->dev, "parent"); - if (IS_ERR(dsi->clk_parent)) - return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent), - "cannot get parent clock\n"); + if (IS_ERR(dsi->clk_parent)) { + err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent), + "cannot get parent clock\n"); + goto remove; + }
dsi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); - if (IS_ERR(dsi->vdd)) - return dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd), - "cannot get VDD supply\n"); + if (IS_ERR(dsi->vdd)) { + err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd), + "cannot get VDD supply\n"); + goto remove; + }
err = tegra_dsi_setup_clocks(dsi); if (err < 0) { dev_err(&pdev->dev, "cannot setup clocks\n"); - return err; + goto remove; }
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); dsi->regs = devm_ioremap_resource(&pdev->dev, regs); - if (IS_ERR(dsi->regs)) - return PTR_ERR(dsi->regs); + if (IS_ERR(dsi->regs)) { + err = PTR_ERR(dsi->regs); + goto remove; + }
dsi->mipi = tegra_mipi_request(&pdev->dev, pdev->dev.of_node); - if (IS_ERR(dsi->mipi)) - return PTR_ERR(dsi->mipi); + if (IS_ERR(dsi->mipi)) { + err = PTR_ERR(dsi->mipi); + goto remove; + }
dsi->host.ops = &tegra_dsi_host_ops; dsi->host.dev = &pdev->dev; @@ -1572,6 +1586,8 @@ static int tegra_dsi_probe(struct platform_device *pdev) mipi_dsi_host_unregister(&dsi->host); mipi_free: tegra_mipi_free(dsi->mipi); +remove: + tegra_output_remove(&dsi->output); return err; }