[PATCH] ti: wl12xx: no need to check return value of debugfs_create functions

[PATCH] ti: wl12xx: no need to check return value of debugfs_create functions

[Greg Kroah-Hartman]

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@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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

Re: [PATCH] ti: wl12xx: no need to check return value of debugfs_create functions

[Tony Lindgren]

* Greg Kroah-Hartman <gregkh@linuxfoundation.org> [190122 15:23]:
> 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.

Acked-by: Tony Lindgren <tony@atomide.com>

Re: [PATCH] wl12xx: no need to check return value of debugfs_create functions

[Kalle Valo]

Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:

> 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@codeaurora.org>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: linux-wireless@vger.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Acked-by: Tony Lindgren <tony@atomide.com>

Patch applied to wireless-drivers-next.git, thanks.

23f389660301 wl12xx: no need to check return value of debugfs_create functions

-- 
https://patchwork.kernel.org/patch/10775789/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches