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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Hulk Robot <hulkci@huawei.com>,
        Zhang Changzhong <zhangchangzhong@huawei.com>,
        =?UTF-8?q?Michal=20Kalderon=C2=A0?= <michal.kalderon@marvell.com>,
        Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH 5.4 025/158] qed: fix error return code in qed_iwarp_ll2_start()
Date:   Mon, 23 Nov 2020 13:20:53 +0100
Message-Id: <20201123121821.149010744@linuxfoundation.org>
In-Reply-To: <20201123121819.943135899@linuxfoundation.org>
References: <20201123121819.943135899@linuxfoundation.org>
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From: Zhang Changzhong <zhangchangzhong@huawei.com>

[ Upstream commit cb47d16ea21045c66eebbf5ed792e74a8537e27a ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 469981b17a4f ("qed: Add unaligned and packed packet processing")
Fixes: fcb39f6c10b2 ("qed: Add mpa buffer descriptors for storing and processing mpa fpdus")
Fixes: 1e28eaad07ea ("qed: Add iWARP support for fpdu spanned over more than two tcp packets")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Link: https://lore.kernel.org/r/1605532033-27373-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qed/qed_iwarp.c |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -2742,14 +2742,18 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_h
 	iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps,
 					    sizeof(*iwarp_info->partial_fpdus),
 					    GFP_KERNEL);
-	if (!iwarp_info->partial_fpdus)
+	if (!iwarp_info->partial_fpdus) {
+		rc = -ENOMEM;
 		goto err;
+	}
 
 	iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps;
 
 	iwarp_info->mpa_intermediate_buf = kzalloc(buff_size, GFP_KERNEL);
-	if (!iwarp_info->mpa_intermediate_buf)
+	if (!iwarp_info->mpa_intermediate_buf) {
+		rc = -ENOMEM;
 		goto err;
+	}
 
 	/* The mpa_bufs array serves for pending RX packets received on the
 	 * mpa ll2 that don't have place on the tx ring and require later
@@ -2759,8 +2763,10 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_h
 	iwarp_info->mpa_bufs = kcalloc(data.input.rx_num_desc,
 				       sizeof(*iwarp_info->mpa_bufs),
 				       GFP_KERNEL);
-	if (!iwarp_info->mpa_bufs)
+	if (!iwarp_info->mpa_bufs) {
+		rc = -ENOMEM;
 		goto err;
+	}
 
 	INIT_LIST_HEAD(&iwarp_info->mpa_buf_pending_list);
 	INIT_LIST_HEAD(&iwarp_info->mpa_buf_list);