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

PATCH In review Greg Kroah-Hartman 3 participants 3 messages Jan 22, 2019 – Feb 1, 2019 TI wilink wireless drivers

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Greg Kroah-Hartman

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#0 lore raw

PATCH 1/1 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 <[email protected]>
Cc Tony Lindgren <[email protected]>
Cc [email protected]
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 drivers/net/wireless/ti/wl12xx/debugfs.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)
drivers/net/wireless/ti/wl12xx/debugfs.c +1 -19
index 0521cbf858cf..6c3c04eca8fd 100644
@@ -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;
 }
Signature · 1 line
2.20.1
Acked-by on v1 1/1
#1 lore raw
Quoted 3 lines · 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.

Acked-by Tony Lindgren <[email protected]>
#2 lore raw

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

In reply to Greg Kroah-Hartman
Quoted 9 lines · 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 <[email protected]>
Cc Tony Lindgren <[email protected]>
Cc [email protected]
Signed-off-by Greg Kroah-Hartman <[email protected]>
Acked-by Tony Lindgren <[email protected]>

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

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

Signature · 3 lines
https://patchwork.kernel.org/patch/10775789/

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