drm/tegra: rgb: Fix some error handling paths in tegra_dc_rgb_probe()

If an error occurs after calling tegra_output_probe(),
tegra_output_remove() should be called as already done in the remove
function.

Fixes: 59d29c0ec93f ("drm/tegra: Allocate resources at probe time")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0001f61eb89048bc36241629b564195689cf54b6.1693667005.git.christophe.jaillet@wanadoo.fr

diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c
index fc66bbd913b24881612fec3f53d5fdf1c34669d1..53c492b13d12983dc21c1143338142b64aa0798d 100644 (file)
--- a/drivers/gpu/drm/tegra/rgb.c
+++ b/drivers/gpu/drm/tegra/rgb.c
@@ -225,26 +225,28 @@ int tegra_dc_rgb_probe(struct tegra_dc *dc)
        rgb->clk = devm_clk_get(dc->dev, NULL);
        if (IS_ERR(rgb->clk)) {
                dev_err(dc->dev, "failed to get clock\n");
-               return PTR_ERR(rgb->clk);
+               err = PTR_ERR(rgb->clk);
+               goto remove;
        }
 
        rgb->clk_parent = devm_clk_get(dc->dev, "parent");
        if (IS_ERR(rgb->clk_parent)) {
                dev_err(dc->dev, "failed to get parent clock\n");
-               return PTR_ERR(rgb->clk_parent);
+               err = PTR_ERR(rgb->clk_parent);
+               goto remove;
        }
 
        err = clk_set_parent(rgb->clk, rgb->clk_parent);
        if (err < 0) {
                dev_err(dc->dev, "failed to set parent clock: %d\n", err);
-               return err;
+               goto remove;
        }
 
        rgb->pll_d_out0 = clk_get_sys(NULL, "pll_d_out0");
        if (IS_ERR(rgb->pll_d_out0)) {
                err = PTR_ERR(rgb->pll_d_out0);
                dev_err(dc->dev, "failed to get pll_d_out0: %d\n", err);
-               return err;
+               goto remove;
        }
 
        if (dc->soc->has_pll_d2_out0) {
@@ -252,13 +254,17 @@ int tegra_dc_rgb_probe(struct tegra_dc *dc)
                if (IS_ERR(rgb->pll_d2_out0)) {
                        err = PTR_ERR(rgb->pll_d2_out0);
                        dev_err(dc->dev, "failed to get pll_d2_out0: %d\n", err);
-                       return err;
+                       goto remove;
                }
        }
 
        dc->rgb = &rgb->output;
 
        return 0;
+
+remove:
+       tegra_output_remove(&rgb->output);
+       return err;
 }
 
 void tegra_dc_rgb_remove(struct tegra_dc *dc)