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ARM: imx3: Fix CCM node reference leak

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of_find_compatible_node() returns a referenced device node. The i.MX31
and i.MX35 early init paths use the node to map the CCM registers with
of_iomap(), but never drop the node reference.

Release the node after the mapping is created.

Fixes: 2cf98d1295 ("ARM: imx3: Retrieve the CCM base address from devicetree")
Signed-off-by: Yuho Choi <dbgh9129@gmail.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Yuho Choi
2026-05-13 23:40:04 -04:00
committed by Frank Li
parent 2430f2080f
commit 36d46348eb
1 changed files with 2 additions and 0 deletions
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arch/arm/mach-imx/mm-imx3.c
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@@ -106,6 +106,7 @@ void __init imx31_init_early(void)
arm_pm_idle = imx31_idle;
np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
mx3_ccm_base = of_iomap(np, 0);
of_node_put(np);
BUG_ON(!mx3_ccm_base);
}
#endif /* ifdef CONFIG_SOC_IMX31 */
@@ -143,6 +144,7 @@ void __init imx35_init_early(void)
arch_ioremap_caller = imx3_ioremap_caller;
np = of_find_compatible_node(NULL, NULL, "fsl,imx35-ccm");
mx3_ccm_base = of_iomap(np, 0);
of_node_put(np);
BUG_ON(!mx3_ccm_base);
}
#endif /* ifdef CONFIG_SOC_IMX35 */