From 64079cf9f2b2f93779c1d9772d0e1f5c04bd4d22 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: Guenter Roeck Cc: linux-watchdog@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/mei_wdt.c | 30 +++++++----------------------- 1 file changed, 7 insertions(+), 23 deletions(-) (limited to 'drivers/watchdog/mei_wdt.c') diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c index 099f6305039d..5391bf3e6b11 100644 --- a/drivers/watchdog/mei_wdt.c +++ b/drivers/watchdog/mei_wdt.c @@ -537,38 +537,23 @@ 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, @@ -621,8 +606,7 @@ 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