[PATCH 1/4] ser_gigaset: fix up NULL checks

From: Tilman Schmidt Commit f34d7a5b7010 ("tty: The big operations rework") changed tty->driver to tty->ops but left NULL checks for tty->driver untouched. Fix. Signed-off-by: Tilman Schmidt [pebolle: removed Fixes tag] Signed-off-by: Paul Bolle --- drivers/isdn/gigaset/ser-gigaset.c | 6

[PATCH 1/4] ser_gigaset: fix up NULL checks

From: Tilman Schmidt Commit f34d7a5b7010 ("tty: The big operations rework") changed tty->driver to tty->ops but left NULL checks for tty->driver untouched. Fix. Signed-off-by: Tilman Schmidt [pebolle: removed Fixes tag] Signed-off-by: Paul Bolle