linux-kernel - [PATCH 1/2] staging: vt6656: Check the return values in vnt_set_bss

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: <20200429152307.5871-2-oscar.carter@gmx.com>
Date:   Wed, 29 Apr 2020 17:23:06 +0200
From:   Oscar Carter <oscar.carter@....com>
To:     Forest Bond <forest@...ttletooquiet.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Oscar Carter <oscar.carter@....com>,
        Malcolm Priestley <tvboxspy@...il.com>,
        Quentin Deslandes <quentin.deslandes@...ev.co.uk>,
        "John B. Wyatt IV" <jbwyatt4@...il.com>,
        Colin Ian King <colin.king@...onical.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] staging: vt6656: Check the return values in vnt_set_bss_mode function

Check the return value of all the functions that return zero if
successful or a negative error code on failure inside the function
vnt_set_bss_mode.

Also, remove the unnecessary variable initialization as this variable is
set a few lines later.

Signed-off-by: Oscar Carter <oscar.carter@....com>
---
 drivers/staging/vt6656/card.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index 872717f9df49..0854b70cb89f 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -471,12 +471,15 @@ int vnt_radio_power_on(struct vnt_private *priv)

 int vnt_set_bss_mode(struct vnt_private *priv)
 {
-	int ret = 0;
+	int ret;

 	if (priv->rf_type == RF_AIROHA7230 && priv->bb_type == BB_TYPE_11A)
-		vnt_mac_set_bb_type(priv, BB_TYPE_11G);
+		ret = vnt_mac_set_bb_type(priv, BB_TYPE_11G);
 	else
-		vnt_mac_set_bb_type(priv, priv->bb_type);
+		ret = vnt_mac_set_bb_type(priv, priv->bb_type);
+
+	if (ret)
+		return ret;

 	priv->packet_type = vnt_get_pkt_type(priv);

@@ -492,8 +495,13 @@ int vnt_set_bss_mode(struct vnt_private *priv)
 	if (ret)
 		return ret;

-	vnt_update_ifs(priv);
-	vnt_set_rspinf(priv, (u8)priv->bb_type);
+	ret = vnt_update_ifs(priv);
+	if (ret)
+		return ret;
+
+	ret = vnt_set_rspinf(priv, (u8)priv->bb_type);
+	if (ret)
+		return ret;

 	if (priv->bb_type == BB_TYPE_11A) {
 		if (priv->rf_type == RF_AIROHA7230) {
@@ -521,6 +529,5 @@ int vnt_set_bss_mode(struct vnt_private *priv)
 		priv->bb_vga[3] = 0x0;
 	}

-	vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
-	return 0;
+	return vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
 }
--
2.20.1