The function s5p_aes_probe() does not perform sufficient error
checking after executing platform_get_resource(), thus fix it.
Fixes: c2afad6c6105 ("crypto: s5p-sss - Add HASH support for Exynos")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
---
Changes from v2
- add Cc: <stable@xxxxxxxxxxxxxxx>
Changes from v1
- add fixed title
---
drivers/crypto/s5p-sss.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 55aa3a711..7717e9e59 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -2171,6 +2171,8 @@ static int s5p_aes_probe(struct platform_device *pdev)
variant = find_s5p_sss_version(pdev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
/*
* Note: HASH and PRNG uses the same registers in secss, avoid
--
2.20.1.windows.1
