From ad2106ca00dfce85ccae7dea28168c3d9e6cc800 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 22 Jan 2019 16:21:24 +0100 Subject: [PATCH] wlcore: 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 Cc: Tony Lindgren Cc: linux-wireless@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Acked-by: Tony Lindgren Signed-off-by: Kalle Valo --- drivers/net/wireless/ti/wlcore/debugfs.c | 28 ++++-------------------- drivers/net/wireless/ti/wlcore/debugfs.h | 10 +++------ 2 files changed, 7 insertions(+), 31 deletions(-) diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c index aeb74e74698e..68acd901d384 100644 --- a/drivers/net/wireless/ti/wlcore/debugfs.c +++ b/drivers/net/wireless/ti/wlcore/debugfs.c @@ -1301,11 +1301,10 @@ static const struct file_operations fw_logger_ops = { .llseek = default_llseek, }; -static int wl1271_debugfs_add_files(struct wl1271 *wl, - struct dentry *rootdir) +static void wl1271_debugfs_add_files(struct wl1271 *wl, + struct dentry *rootdir) { - int ret = 0; - struct dentry *entry, *streaming; + struct dentry *streaming; DEBUGFS_ADD(tx_queue_len, rootdir); DEBUGFS_ADD(retry_count, rootdir); @@ -1330,23 +1329,11 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl, DEBUGFS_ADD(fw_logger, rootdir); streaming = debugfs_create_dir("rx_streaming", rootdir); - if (!streaming || IS_ERR(streaming)) - goto err; DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); DEBUGFS_ADD_PREFIX(dev, mem, rootdir); - - return 0; - -err: - if (IS_ERR(entry)) - ret = PTR_ERR(entry); - else - ret = -ENOMEM; - - return ret; } void wl1271_debugfs_reset(struct wl1271 *wl) @@ -1367,11 +1354,6 @@ int wl1271_debugfs_init(struct wl1271 *wl) rootdir = debugfs_create_dir(KBUILD_MODNAME, wl->hw->wiphy->debugfsdir); - if (IS_ERR(rootdir)) { - ret = PTR_ERR(rootdir); - goto out; - } - wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); if (!wl->stats.fw_stats) { ret = -ENOMEM; @@ -1380,9 +1362,7 @@ int wl1271_debugfs_init(struct wl1271 *wl) wl->stats.fw_stats_update = jiffies; - ret = wl1271_debugfs_add_files(wl, rootdir); - if (ret < 0) - goto out_exit; + wl1271_debugfs_add_files(wl, rootdir); ret = wlcore_debugfs_init(wl, rootdir); if (ret < 0) diff --git a/drivers/net/wireless/ti/wlcore/debugfs.h b/drivers/net/wireless/ti/wlcore/debugfs.h index bf14676e6515..a4952c4f587e 100644 --- a/drivers/net/wireless/ti/wlcore/debugfs.h +++ b/drivers/net/wireless/ti/wlcore/debugfs.h @@ -53,19 +53,15 @@ static const struct file_operations name## _ops = { \ #define DEBUGFS_ADD(name, parent) \ do { \ - entry = debugfs_create_file(#name, 0400, parent, \ - wl, &name## _ops); \ - if (!entry || IS_ERR(entry)) \ - goto err; \ + debugfs_create_file(#name, 0400, parent, \ + wl, &name## _ops); \ } while (0) #define DEBUGFS_ADD_PREFIX(prefix, name, parent) \ do { \ - entry = debugfs_create_file(#name, 0400, parent, \ + debugfs_create_file(#name, 0400, parent, \ wl, &prefix## _## name## _ops); \ - if (!entry || IS_ERR(entry)) \ - goto err; \ } while (0) #define DEBUGFS_FWSTATS_FILE(sub, name, fmt, struct_type) \ -- 2.30.2