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clk: starfive: jh7110: reject oscillator lookup errors

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Clock lookup may fail while allocating a consumer reference. Return
a notifier error rather than passing ERR_PTR as the new clock parent.

Detected by static analysis and reviewed with AI-assisted source auditing.

Fixes: 538d5477b2 ("clk: starfive: jh7110-sys: Add notifier for PLL0 clock")
Assisted-by: LLM
Signed-off-by: Slavin Liu <bolin.liu@seu.edu.cn>
Signed-off-by: Brian Masney <bmasney@redhat.com>
This commit is contained in:
Slavin Liu 2026-09-13 20:51:12 +08:00 committed by Brian Masney
parent c90a50d07f
commit 54d0b69039
1 changed files with 3 additions and 0 deletions
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3
drivers/clk/starfive/clk-starfive-jh7110-sys.c
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@ -390,6 +390,9 @@ static int jh7110_pll0_clk_notifier_cb(struct notifier_block *nb,
if (action == PRE_RATE_CHANGE) {
struct clk *osc = clk_get(priv->dev, "osc");
if (IS_ERR(osc))
return notifier_from_errno(PTR_ERR(osc));
priv->original_clk = clk_get_parent(cpu_root);
ret = clk_set_parent(cpu_root, osc);
clk_put(osc);