netdev - [PATCH net-next] qed: Set error code for allocation failures

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20171027064020.aq52ue4kfp5htrb5@mwanda>
Date:   Fri, 27 Oct 2017 09:40:20 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Ariel Elior <Ariel.Elior@...ium.com>
Cc:     everest-linux-l2@...ium.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] qed: Set error code for allocation failures

There are several places where we accidentally return success when
kcalloc() fails.

Fixes: fcb39f6c10b2 ("qed: Add mpa buffer descriptors for storing and processing mpa fpdus")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 409041eab189..6366f2ef82b7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -2585,7 +2585,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
 	struct qed_ll2_cbs cbs;
 	u32 mpa_buff_size;
 	u16 n_ooo_bufs;
-	int rc = 0;
+	int rc;
 	int i;
 
 	iwarp_info = &p_hwfn->p_rdma_info->iwarp;
@@ -2696,6 +2696,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
 	if (rc)
 		goto err;
 
+	rc = -ENOMEM;
 	iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps,
 					    sizeof(*iwarp_info->partial_fpdus),
 					    GFP_KERNEL);
@@ -2724,7 +2725,7 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
 	for (i = 0; i < data.input.rx_num_desc; i++)
 		list_add_tail(&iwarp_info->mpa_bufs[i].list_entry,
 			      &iwarp_info->mpa_buf_list);
-	return rc;
+	return 0;
 err:
 	qed_iwarp_ll2_stop(p_hwfn, p_ptt);