netdev - [PATCH net-next] net: ethernet: ti: fix return value check in k3_cppi_desc_pool_create

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Message-ID: <20200427093343.157119-1-weiyongjun1@huawei.com>
Date:   Mon, 27 Apr 2020 09:33:43 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Grygorii Strashko <grygorii.strashko@...com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>, <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: [PATCH net-next] net: ethernet: ti: fix return value check in k3_cppi_desc_pool_create_name()

In case of error, the function gen_pool_create() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/net/ethernet/ti/k3-cppi-desc-pool.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/k3-cppi-desc-pool.c b/drivers/net/ethernet/ti/k3-cppi-desc-pool.c
index ad7cfc1316ce..38cc12f9f133 100644
--- a/drivers/net/ethernet/ti/k3-cppi-desc-pool.c
+++ b/drivers/net/ethernet/ti/k3-cppi-desc-pool.c
@@ -64,8 +64,8 @@ k3_cppi_desc_pool_create_name(struct device *dev, size_t size,
 		return ERR_PTR(-ENOMEM);
 
 	pool->gen_pool = gen_pool_create(ilog2(pool->desc_size), -1);
-	if (IS_ERR(pool->gen_pool)) {
-		ret = PTR_ERR(pool->gen_pool);
+	if (!pool->gen_pool) {
+		ret = -ENOMEM;
 		dev_err(pool->dev, "pool create failed %d\n", ret);
 		kfree_const(pool_name);
 		goto gen_pool_create_fail;