From 60aa49243d09afc873f082567d2e3c16634ced84 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Sun, 1 Feb 2009 14:52:56 -0700 Subject: Rationalize fasync return values Most fasync implementations do something like: return fasync_helper(...); But fasync_helper() will return a positive value at times - a feature used in at least one place. Thus, a number of other drivers do: err = fasync_helper(...); if (err < 0) return err; return 0; In the interests of consistency and more concise code, it makes sense to map positive return values onto zero where ->fasync() is called. Cc: Al Viro Signed-off-by: Jonathan Corbet --- drivers/input/evdev.c | 5 +---- drivers/input/joydev.c | 5 +---- drivers/input/mousedev.c | 5 +---- drivers/input/serio/serio_raw.c | 4 +--- 4 files changed, 4 insertions(+), 15 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index ed8baa0aec3c..7a7a026ba712 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -94,11 +94,8 @@ static void evdev_event(struct input_handle *handle, static int evdev_fasync(int fd, struct file *file, int on) { struct evdev_client *client = file->private_data; - int retval; - - retval = fasync_helper(fd, file, on, &client->fasync); - return retval < 0 ? retval : 0; + return fasync_helper(fd, file, on, &client->fasync); } static int evdev_flush(struct file *file, fl_owner_t id) diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 6f2366220a50..4224f0112849 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -159,12 +159,9 @@ static void joydev_event(struct input_handle *handle, static int joydev_fasync(int fd, struct file *file, int on) { - int retval; struct joydev_client *client = file->private_data; - retval = fasync_helper(fd, file, on, &client->fasync); - - return retval < 0 ? retval : 0; + return fasync_helper(fd, file, on, &client->fasync); } static void joydev_free(struct device *dev) diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index ef99a7e6d40c..17fd6d46d082 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -403,12 +403,9 @@ static void mousedev_event(struct input_handle *handle, static int mousedev_fasync(int fd, struct file *file, int on) { - int retval; struct mousedev_client *client = file->private_data; - retval = fasync_helper(fd, file, on, &client->fasync); - - return retval < 0 ? retval : 0; + return fasync_helper(fd, file, on, &client->fasync); } static void mousedev_free(struct device *dev) diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c index 06bbd0e74c6f..b03009bb7468 100644 --- a/drivers/input/serio/serio_raw.c +++ b/drivers/input/serio/serio_raw.c @@ -58,10 +58,8 @@ static unsigned int serio_raw_no; static int serio_raw_fasync(int fd, struct file *file, int on) { struct serio_raw_list *list = file->private_data; - int retval; - retval = fasync_helper(fd, file, on, &list->fasync); - return retval < 0 ? retval : 0; + return fasync_helper(fd, file, on, &list->fasync); } static struct serio_raw *serio_raw_locate(int minor) -- cgit v1.2.3