Commit a1862c3b authored by Neal Liu's avatar Neal Liu Committed by Herbert Xu
Browse files

crypto: aspeed - add error handling if dmam_alloc_coherent() failed 



Since the acry_dev->buf_addr may be NULL, add error handling to
prevent any additional access to avoid potential issues.

Signed-off-by: default avatarNeal Liu <neal_liu@aspeedtech.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f84155ca

drivers/crypto/aspeed/aspeed-acry.c

+4 −1
Original line number Diff line number Diff line
@@ -779,7 +779,10 @@ 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);

	memzero_explicit(acry_dev->buf_addr, ASPEED_ACRY_BUFF_SIZE);

	if (!acry_dev->buf_addr) {

		rc = -ENOMEM;

		goto err_engine_rsa_start;

	}



	aspeed_acry_register(acry_dev);