crypto: bfin_crc - Fix possible NULL pointer dereference
If we define dev_dbg(), then there is a possible NULL pointer
dereference.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/bfin_crc.c b/drivers/crypto/bfin_crc.c
index 827913d..d797f31 100644
--- a/drivers/crypto/bfin_crc.c
+++ b/drivers/crypto/bfin_crc.c
@@ -151,7 +151,7 @@
struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(req);
struct bfin_crypto_crc *crc;
- dev_dbg(crc->dev, "crc_init\n");
+ dev_dbg(ctx->crc->dev, "crc_init\n");
spin_lock_bh(&crc_list.lock);
list_for_each_entry(crc, &crc_list.dev_list, list) {
crc_ctx->crc = crc;
@@ -160,7 +160,7 @@
spin_unlock_bh(&crc_list.lock);
if (sg_count(req->src) > CRC_MAX_DMA_DESC) {
- dev_dbg(crc->dev, "init: requested sg list is too big > %d\n",
+ dev_dbg(ctx->crc->dev, "init: requested sg list is too big > %d\n",
CRC_MAX_DMA_DESC);
return -EINVAL;
}
@@ -175,7 +175,7 @@
/* init crc results */
put_unaligned_le32(crc_ctx->key, req->result);
- dev_dbg(crc->dev, "init: digest size: %d\n",
+ dev_dbg(ctx->crc->dev, "init: digest size: %d\n",
crypto_ahash_digestsize(tfm));
return bfin_crypto_crc_init_hw(crc, crc_ctx->key);