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clk: tegra: tegra124-emc: fix device leak on set_rate()

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Make sure to drop the reference taken when looking up the EMC device and
its driver data on first set_rate().

Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.

Fixes: 2db04f16b5 ("clk: tegra: Add EMC clock driver")
Fixes: 6d6ef58c24 ("clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver")
Cc: stable@vger.kernel.org	# 4.2: 6d6ef58c24
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Cc: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Johan Hovold 2025-11-21 17:40:03 +01:00 • committed by Stephen Boyd
parent abe368db11
commit da61439c63
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1 changed files with 1 additions and 1 deletions
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2
drivers/clk/tegra/clk-tegra124-emc.c
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@ -197,8 +197,8 @@ static struct tegra_emc *emc_ensure_emc_driver(struct tegra_clk_emc *tegra)
tegra->emc_node = NULL;
tegra->emc = platform_get_drvdata(pdev);
put_device(&pdev->dev);
if (!tegra->emc) {
put_device(&pdev->dev);
pr_err("%s: cannot find EMC driver\n", __func__);
return NULL;
}