From: Jia-Ju Bai <baijiaju1...@gmail.com>

[ Upstream commit 715ea61532e731c62392221238906704e63d75b6 ]

When krealloc() fails and new is NULL, no error return code of
icc_link_destroy() is assigned.
To fix this bug, ret is assigned with -ENOMEM hen new is NULL.

Reported-by: TOTE Robot <os...@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1...@gmail.com>
Link: https://lore.kernel.org/r/20210306132857.17020-1-baijiaju1...@gmail.com
Signed-off-by: Georgi Djakov <georgi.dja...@linaro.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/interconnect/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 5ad519c9f239..8a1e70e00876 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -942,6 +942,8 @@ int icc_link_destroy(struct icc_node *src, struct icc_node 
*dst)
                       GFP_KERNEL);
        if (new)
                src->links = new;
+       else
+               ret = -ENOMEM;
 
 out:
        mutex_unlock(&icc_lock);
-- 
2.30.2

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