clk: spear: fix resource leak in clk_register_vco_pll()

Add a goto label in clk_register_vco_pll(), unregister vco_clk
if tpll_clk is failed to be registered.

Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20260325062204.169648-1-lihaoxiang@isrc.iscas.ac.cn
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: Haoxiang Li

drivers/clk/spear/clk-vco-pll.c

@@ -343,13 +343,15 @@ struct clk *clk_register_vco_pll(const char *vco_name, const char *pll_name,
 
 	tpll_clk = clk_register(NULL, &pll->hw);
 	if (IS_ERR_OR_NULL(tpll_clk))
-		goto free_pll;
+		goto unregister_clk;
 
 	if (pll_clk)
 		*pll_clk = tpll_clk;
 
 	return vco_clk;
 
+unregister_clk:
+	clk_unregister(vco_clk);
 free_pll:
 	kfree(pll);
 free_vco: