Since the acry_dev->buf_addr may be NULL, add error handling to
prevent any additional access to avoid potential issues.
Signed-off-by: Neal Liu <neal_liu@xxxxxxxxxxxxxx>
---
drivers/crypto/aspeed/aspeed-acry.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/crypto/aspeed/aspeed-acry.c b/drivers/crypto/aspeed/aspeed-acry.c
index 1f77ebd73489..85733e418c9e 100644
--- a/drivers/crypto/aspeed/aspeed-acry.c
+++ b/drivers/crypto/aspeed/aspeed-acry.c
@@ -782,6 +782,11 @@ static int aspeed_acry_probe(struct platform_device *pdev)
acry_dev->buf_addr = dmam_alloc_coherent(dev, ASPEED_ACRY_BUFF_SIZE,
&acry_dev->buf_dma_addr,
GFP_KERNEL);
+ if (!acry_dev->buf_addr) {
+ rc = -ENOMEM;
+ goto err_engine_rsa_start;
+ }
+
memzero_explicit(acry_dev->buf_addr, ASPEED_ACRY_BUFF_SIZE);
aspeed_acry_register(acry_dev);
--
2.25.1
