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drm/tegra: rgb: Fix missing clk_put() in the error handling paths of tegra_dc_rgb_probe()

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[ Upstream commit 45c8034db47842b25a3ab6139d71e13b4e67b9b3 ]

If clk_get_sys(..., "pll_d2_out0") fails, the clk_get_sys() call must be
undone.

Add the missing clk_put and a new 'put_pll_d_out0' label in the error
handling path, and use it.

Fixes: 0c921b6d4b ("drm/tegra: dc: rgb: Allow changing PLLD rate on Tegra30+")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0182895ead4e4730426616b0d9995954c960b634.1693667005.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET
2023-09-02 17:22:12 +02:00
committed by Sasha Levin
parent 29f922ae4a
commit f3f407ccbe
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/tegra/rgb.c
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@@ -243,7 +243,7 @@ int tegra_dc_rgb_probe(struct tegra_dc *dc)
if (IS_ERR(rgb->pll_d2_out0)) { if (IS_ERR(rgb->pll_d2_out0)) {
err = PTR_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); dev_err(dc->dev, "failed to get pll_d2_out0: %d\n", err);
goto remove; goto put_pll;
} }
} }
@@ -251,6 +251,8 @@ int tegra_dc_rgb_probe(struct tegra_dc *dc)
return 0; return 0;
put_pll:
clk_put(rgb->pll_d_out0);
remove: remove:
tegra_output_remove(&rgb->output); tegra_output_remove(&rgb->output);
return err; return err;