From 1012592cce2c59d85b7f535eb21d38d131167f07 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 18 Jun 2019 17:58:30 +0200 Subject: watchdog: mei_wdt: 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: Tomas Winkler Cc: Wim Van Sebroeck Cc: linux-watchdog@vger.kernel.org Reviewed-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/watchdog/mei_wdt.c | 30 +++++++----------------------- 1 file changed, 7 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c index 8023cf28657a..96a770938ff0 100644 --- a/drivers/watchdog/mei_wdt.c +++ b/drivers/watchdog/mei_wdt.c @@ -539,38 +539,23 @@ static void dbgfs_unregister(struct mei_wdt *wdt) wdt->dbgfs_dir = NULL; } -static int dbgfs_register(struct mei_wdt *wdt) +static void dbgfs_register(struct mei_wdt *wdt) { - struct dentry *dir, *f; + struct dentry *dir; dir = debugfs_create_dir(KBUILD_MODNAME, NULL); - if (!dir) - return -ENOMEM; - wdt->dbgfs_dir = dir; - f = debugfs_create_file("state", S_IRUSR, dir, wdt, &dbgfs_fops_state); - if (!f) - goto err; - f = debugfs_create_file("activation", S_IRUSR, - dir, wdt, &dbgfs_fops_activation); - if (!f) - goto err; + debugfs_create_file("state", S_IRUSR, dir, wdt, &dbgfs_fops_state); - return 0; -err: - dbgfs_unregister(wdt); - return -ENODEV; + debugfs_create_file("activation", S_IRUSR, dir, wdt, + &dbgfs_fops_activation); } #else static inline void dbgfs_unregister(struct mei_wdt *wdt) {} - -static inline int dbgfs_register(struct mei_wdt *wdt) -{ - return 0; -} +static inline void dbgfs_register(struct mei_wdt *wdt) {} #endif /* CONFIG_DEBUG_FS */ static int mei_wdt_probe(struct mei_cl_device *cldev, @@ -623,8 +608,7 @@ static int mei_wdt_probe(struct mei_cl_device *cldev, if (ret) goto err_disable; - if (dbgfs_register(wdt)) - dev_warn(&cldev->dev, "cannot register debugfs\n"); + dbgfs_register(wdt); return 0; -- cgit v1.2.3-58-ga151