# \[PATCH\] powerpc/sysdev/of\_rtc: Fix possible memory leak in of\_instantiate\_rtc

- From: He Ying \<hidden\>
- Date: 2021-11-03 01:45:41 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/11/1561393
- Thread: https://ratatoskr.run/linuxppc-dev/2021/11/1561393/t.md

```text
If of_address_to_resource() in of_instantiate_rtc() fails, previously
allocated memory res is not freed. Add missing kfree() for it.

Signed-off-by: He Ying <redacted>
---
 arch/powerpc/sysdev/of_rtc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/sysdev/of_rtc.c b/arch/powerpc/sysdev/of_rtc.c
index 1f408d34a6a7..23b896996c2f 100644
--- a/arch/powerpc/sysdev/of_rtc.c
+++ b/arch/powerpc/sysdev/of_rtc.c
@@ -44,6 +44,7 @@ void __init of_instantiate_rtc(void)
 				printk(KERN_ERR "OF RTC: Error "
 				       "translating resources for %pOF\n",
 				       node);
+				kfree(res);
 				continue;
 			}
 
-- 
2.17.1

```