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tty: add tty_struct->dev pointer to corresponding device instance

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Some device drivers (mostly tty line disciplines) would like to have way
know a struct device instance corresponding to passed tty_struct. Add
a struct device pointer to struct tty_struct and populate it during
initialize_tty_struct().

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dmitry Eremin-Solenikov
2010-08-09 18:22:49 +04:00
committed by Greg Kroah-Hartman
parent f6f94e2ab1
commit 30004ac9c0
2 changed files with 18 additions and 0 deletions
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include/linux/tty.h
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@@ -256,6 +256,7 @@ struct tty_operations;
struct tty_struct {
int magic;
struct kref kref;
struct device *dev;
struct tty_driver *driver;
const struct tty_operations *ops;
int index;