Hello! On 9/4/2018 5:44 AM, Jaejoong Kim wrote:
Many drivers with tty use the tty_stand_install(). But, there is no need to handle the error, since it always returns 0. So, change the return type of tty_standard_install() and tty_port_install() to void type and remove unnecessary exception handling where we use these functions. Signed-off-by: Jaejoong Kim <climbbb.kim@xxxxxxxxx> --- drivers/tty/tty_io.c | 10 ++++++---- drivers/tty/tty_port.c | 4 ++-- include/linux/tty.h | 4 ++-- 3 files changed, 10 insertions(+), 8 deletions(-)
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diff --git a/include/linux/tty.h b/include/linux/tty.h index c56e397..63cdac1 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -556,7 +556,7 @@ extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx); extern void tty_release_struct(struct tty_struct *tty, int idx); extern int tty_release(struct inode *inode, struct file *filp); extern void tty_init_termios(struct tty_struct *tty); -extern int tty_standard_install(struct tty_driver *driver, +extern void tty_standard_install(struct tty_driver *driver, struct tty_struct *tty);extern struct mutex tty_mutex;@@ -688,7 +688,7 @@ extern int tty_port_close_start(struct tty_port *port, extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty); extern void tty_port_close(struct tty_port *port, struct tty_struct *tty, struct file *filp); -extern int tty_port_install(struct tty_port *port, struct tty_driver *driver, +extern void tty_port_install(struct tty_port *port, struct tty_driver *driver, struct tty_struct *tty);
You need to update all the callers in the same patch -- the kernel must remain buildable after each patch but you seem to have spread that update among a lot of patches..
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