linux-kernel - [PATCH] ti: wl12xx: no need to check return value of debugfs

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]

Date:   Tue, 22 Jan 2019 16:21:26 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        Tony Lindgren <tony@...mide.com>,
        linux-wireless@...r.kernel.org
Subject: [PATCH] ti: wl12xx: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Kalle Valo <kvalo@...eaurora.org>
Cc: Tony Lindgren <tony@...mide.com>
Cc: linux-wireless@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/wireless/ti/wl12xx/debugfs.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/net/wireless/ti/wl12xx/debugfs.c b/drivers/net/wireless/ti/wl12xx/debugfs.c
index 0521cbf858cf..6c3c04eca8fd 100644
--- a/drivers/net/wireless/ti/wl12xx/debugfs.c
+++ b/drivers/net/wireless/ti/wl12xx/debugfs.c
@@ -125,20 +125,10 @@ WL12XX_DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
 int wl12xx_debugfs_add_files(struct wl1271 *wl,
 			     struct dentry *rootdir)
 {
-	int ret = 0;
-	struct dentry *entry, *stats, *moddir;
+	struct dentry *stats, *moddir;
 
 	moddir = debugfs_create_dir(KBUILD_MODNAME, rootdir);
-	if (!moddir || IS_ERR(moddir)) {
-		entry = moddir;
-		goto err;
-	}
-
 	stats = debugfs_create_dir("fw_stats", moddir);
-	if (!stats || IS_ERR(stats)) {
-		entry = stats;
-		goto err;
-	}
 
 	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 
@@ -232,12 +222,4 @@ int wl12xx_debugfs_add_files(struct wl1271 *wl,
 	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 
 	return 0;
-
-err:
-	if (IS_ERR(entry))
-		ret = PTR_ERR(entry);
-	else
-		ret = -ENOMEM;
-
-	return ret;
 }
-- 
2.20.1