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Subject[PATCH] iscsi: fix crypto_alloc_hash() error check
The return value of crypto_alloc_hash() should be checked by
IS_ERR().

Cc: Dmitry Yusupov <dmitry_yus@yahoo.com>
Cc: Alex Aizman <itn780@yahoo.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>

---
drivers/scsi/iscsi_tcp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: work-fault-inject/drivers/scsi/iscsi_tcp.c
===================================================================
--- work-fault-inject.orig/drivers/scsi/iscsi_tcp.c
+++ work-fault-inject/drivers/scsi/iscsi_tcp.c
@@ -1777,13 +1777,13 @@ iscsi_tcp_conn_create(struct iscsi_cls_s
tcp_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0,
CRYPTO_ALG_ASYNC);
tcp_conn->tx_hash.flags = 0;
- if (!tcp_conn->tx_hash.tfm)
+ if (IS_ERR(tcp_conn->tx_hash.tfm))
goto free_tcp_conn;

tcp_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0,
CRYPTO_ALG_ASYNC);
tcp_conn->rx_hash.flags = 0;
- if (!tcp_conn->rx_hash.tfm)
+ if (IS_ERR(tcp_conn->rx_hash.tfm))
goto free_tx_tfm;

return cls_conn;
-
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