diff options
| author | Richard Weinberger <richard@nod.at> | 2013-03-11 10:05:45 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2013-03-11 10:08:04 +0100 |
| commit | 2116bda6ad937d7acb6e2316fd9e65ad6ca01d42 (patch) | |
| tree | dc9b20f4bc76b335e8a395b4248f50ac2d3935dc /arch/um/drivers/chan_user.c | |
| parent | um: Use tty_port_operations->destruct (diff) | |
| download | linux-2116bda6ad937d7acb6e2316fd9e65ad6ca01d42.tar.xz linux-2116bda6ad937d7acb6e2316fd9e65ad6ca01d42.zip | |
um: Use tty_port in SIGWINCH handler
The tty below tty_port might get destroyed by the tty layer
while we hold a reference to it.
So we have to carry tty_port around...
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/drivers/chan_user.c')
| -rw-r--r-- | arch/um/drivers/chan_user.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 9be670ad23b5..3fd7c3efdb18 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -216,7 +216,7 @@ static int winch_thread(void *arg) } } -static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out, +static int winch_tramp(int fd, struct tty_port *port, int *fd_out, unsigned long *stack_out) { struct winch_data data; @@ -271,7 +271,7 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out, return err; } -void register_winch(int fd, struct tty_struct *tty) +void register_winch(int fd, struct tty_port *port) { unsigned long stack; int pid, thread, count, thread_fd = -1; @@ -281,17 +281,17 @@ void register_winch(int fd, struct tty_struct *tty) return; pid = tcgetpgrp(fd); - if (is_skas_winch(pid, fd, tty)) { - register_winch_irq(-1, fd, -1, tty, 0); + if (is_skas_winch(pid, fd, port)) { + register_winch_irq(-1, fd, -1, port, 0); return; } if (pid == -1) { - thread = winch_tramp(fd, tty, &thread_fd, &stack); + thread = winch_tramp(fd, port, &thread_fd, &stack); if (thread < 0) return; - register_winch_irq(thread_fd, fd, thread, tty, stack); + register_winch_irq(thread_fd, fd, thread, port, stack); count = write(thread_fd, &c, sizeof(c)); if (count != sizeof(c)) |