linux-kernel - [PATCH net-next 05/13] sunhme: Regularize probe errors

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

Message-Id: <20220918232626.1601885-6-seanga2@gmail.com>
Date:   Sun, 18 Sep 2022 19:26:18 -0400
From:   Sean Anderson <seanga2@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org (open list),
        Zheyu Ma <zheyuma97@...il.com>,
        Nick Bowler <nbowler@...conx.ca>,
        Rolf Eike Beer <eike-kernel@...tec.de>,
        Sean Anderson <seanga2@...il.com>
Subject: [PATCH net-next 05/13] sunhme: Regularize probe errors

This fixes several error paths to ensure they return an appropriate error
(instead of ENODEV).

Signed-off-by: Sean Anderson <seanga2@...il.com>
---

 drivers/net/ethernet/sun/sunhme.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index 52247505d08e..f0b77bdf51dd 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -2948,7 +2948,6 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_out;
 	pci_set_master(pdev);
-	err = -ENODEV;
 
 	if (!strcmp(prom_name, "SUNW,qfe") || !strcmp(prom_name, "qfe")) {
 		qp = quattro_pci_find(pdev);
@@ -2985,18 +2984,22 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 	}
 
 	hpreg_res = pci_resource_start(pdev, 0);
-	err = -ENODEV;
+	err = -EINVAL;
 	if ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) != 0) {
 		printk(KERN_ERR "happymeal(PCI): Cannot find proper PCI device base address.\n");
 		goto err_out_clear_quattro;
 	}
-	if (pci_request_regions(pdev, DRV_NAME)) {
+
+	err = pci_request_regions(pdev, DRV_NAME);
+	if (err) {
 		printk(KERN_ERR "happymeal(PCI): Cannot obtain PCI resources, "
 		       "aborting.\n");
 		goto err_out_clear_quattro;
 	}
 
-	if ((hpreg_base = ioremap(hpreg_res, 0x8000)) == NULL) {
+	hpreg_base = ioremap(hpreg_res, 0x8000);
+	err = -ENOMEM;
+	if (!hpreg_base) {
 		printk(KERN_ERR "happymeal(PCI): Unable to remap card memory.\n");
 		goto err_out_free_res;
 	}
@@ -3066,7 +3069,7 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 
 	hp->happy_block = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
 					     &hp->hblock_dvma, GFP_KERNEL);
-	err = -ENODEV;
+	err = -ENOMEM;
 	if (!hp->happy_block)
 		goto err_out_iounmap;
 
-- 
2.37.1