9 #include <linux/tty.h>
22 	struct tty_struct *tty;  member
30 	struct tty_struct *tty;  in __speakup_set_selection()  local
38 	/* release the lock by setting tty of the struct to NULL */  in __speakup_set_selection()
39 	tty = xchg(&ssw->tty, NULL);  in __speakup_set_selection()
51 	set_selection_kernel(&sel, tty);  in __speakup_set_selection()
54 	tty_kref_put(tty);  in __speakup_set_selection()
62 int speakup_set_selection(struct tty_struct *tty)  in speakup_set_selection()  argument
66 	 * invariant that if speakup_sel_work.tty is not NULL when  in speakup_set_selection()
70 	tty_kref_get(tty);  in speakup_set_selection()
71 	if (cmpxchg(&speakup_sel_work.tty, NULL, tty)) {  in speakup_set_selection()
72 		tty_kref_put(tty);  in speakup_set_selection()
75 	/* now we have the 'lock' by setting tty member of  in speakup_set_selection()
94 	struct tty_struct *tty;  in speakup_cancel_selection()  local
101 	tty = xchg(&speakup_sel_work.tty, NULL);  in speakup_cancel_selection()
102 	if (tty)  in speakup_cancel_selection()
103 		tty_kref_put(tty);  in speakup_cancel_selection()
110 	struct tty_struct *tty = xchg(&ssw->tty, NULL);  in __speakup_paste_selection()  local
112 	paste_selection(tty);  in __speakup_paste_selection()
113 	tty_kref_put(tty);  in __speakup_paste_selection()
121 int speakup_paste_selection(struct tty_struct *tty)  in speakup_paste_selection()  argument
123 	tty_kref_get(tty);  in speakup_paste_selection()
124 	if (cmpxchg(&speakup_paste_work.tty, NULL, tty)) {  in speakup_paste_selection()
125 		tty_kref_put(tty);  in speakup_paste_selection()
135 	struct tty_struct *tty;  in speakup_cancel_paste()  local
138 	tty = xchg(&speakup_paste_work.tty, NULL);  in speakup_cancel_paste()
139 	if (tty)  in speakup_cancel_paste()
140 		tty_kref_put(tty);  in speakup_cancel_paste()