[PATCH v2] irqchip/wpcm450: fix memory leak in wpcm450_aic_of_init()

From: Wei Yongjun
Date: Tue Nov 15 2022 - 04:25:07 EST


From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>

If of_iomap() failed, 'aic' should be freed before return. Otherwise
there is a memory leak.

Fixes: fead4dd49663 ("irqchip: Add driver for WPCM450 interrupt controller")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
v1 -> v2: fix function name in subject

drivers/irqchip/irq-wpcm450-aic.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-wpcm450-aic.c b/drivers/irqchip/irq-wpcm450-aic.c
index 0dcbeb1a05a1..91df62a64cd9 100644
--- a/drivers/irqchip/irq-wpcm450-aic.c
+++ b/drivers/irqchip/irq-wpcm450-aic.c
@@ -146,6 +146,7 @@ static int __init wpcm450_aic_of_init(struct device_node *node,
aic->regs = of_iomap(node, 0);
if (!aic->regs) {
pr_err("Failed to map WPCM450 AIC registers\n");
+ kfree(aic);
return -ENOMEM;
}

--
2.34.1