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[173.230.104.22]) by smtp.gmail.com with ESMTPSA id 195sm11918724itm.2.2018.12.25.19.43.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 25 Dec 2018 19:43:30 -0800 (PST) From: Kangjie Lu To: kjlu@umn.edu Cc: pakki001@umn.edu, Kalle Valo , "David S. Miller" , libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] wireless: marvell: add checks for the return value of sysfs_create_group Date: Tue, 25 Dec 2018 21:43:03 -0600 Message-Id: <20181226034305.73411-1-kjlu@umn.edu> X-Mailer: git-send-email 2.17.2 (Apple Git-113) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP sysfs_create_group() could fail, so let's check its return values and issue error messages if it fails. Signed-off-by: Kangjie Lu --- drivers/net/wireless/marvell/libertas/mesh.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c index b0cb16ef8d1d..90b20618e0af 100644 --- a/drivers/net/wireless/marvell/libertas/mesh.c +++ b/drivers/net/wireless/marvell/libertas/mesh.c @@ -797,7 +797,11 @@ static void lbs_persist_config_init(struct net_device *dev) { int ret; ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group); + if (ret) + pr_err("failed to create boot_opts_group.\n"); ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group); + if (ret) + pr_err("failed to create mesh_ie_group.\n"); } static void lbs_persist_config_remove(struct net_device *dev)