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Message-Id: <20170804231600.803144672@linuxfoundation.org>
Date:   Fri,  4 Aug 2017 16:16:25 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, bianpan2010@....edu.cn,
        Burak Ok <burak-kernel@...0k.de>,
        Andreas Schaertl <andreas.schaertl@....de>,
        Narsimhulu Musini <nmusini@...co.com>,
        "Ewan D. Milne" <emilne@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 89/91] scsi: snic: Return error code on memory allocation failure

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Burak Ok <burak-kernel@...0k.de>


[ Upstream commit 0371adcdaca92912baaa3256ed13e058a016e62d ]

If a call to mempool_create_slab_pool() in snic_probe() returns NULL,
return -ENOMEM to indicate failure. mempool_creat_slab_pool() only fails
if it cannot allocate memory.

https://bugzilla.kernel.org/show_bug.cgi?id=189061

Reported-by: bianpan2010@....edu.cn
Signed-off-by: Burak Ok <burak-kernel@...0k.de>
Signed-off-by: Andreas Schaertl <andreas.schaertl@....de>
Acked-by: Narsimhulu Musini <nmusini@...co.com>
Reviewed-by: Ewan D. Milne <emilne@...hat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/scsi/snic/snic_main.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/snic/snic_main.c
+++ b/drivers/scsi/snic/snic_main.c
@@ -584,6 +584,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_res;
 	}
 
@@ -594,6 +595,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_dflt_sgl_pool;
 	}
 
@@ -604,6 +606,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
 
+		ret = -ENOMEM;
 		goto err_free_max_sgl_pool;
 	}
 


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