diff options
Diffstat (limited to 'arch/um/drivers/chan_user.c')
| -rw-r--r-- | arch/um/drivers/chan_user.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index c2b83cb99aae..ed7cc830b3e7 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -141,7 +141,7 @@ struct winch_data { int pipe_fd; }; -static int winch_thread(void *arg) +static __noreturn int winch_thread(void *arg) { struct winch_data *data = arg; sigset_t sigs; @@ -168,7 +168,7 @@ static int winch_thread(void *arg) if (sigprocmask(SIG_SETMASK, &sigs, NULL) < 0) { os_info("winch_thread : sigprocmask failed, errno = %d\n", errno); - exit(1); + goto wait_kill; } /* In sigsuspend(), block anything else than SIGWINCH. */ sigdelset(&sigs, SIGWINCH); @@ -176,19 +176,19 @@ static int winch_thread(void *arg) if (setsid() < 0) { os_info("winch_thread : setsid failed, errno = %d\n", errno); - exit(1); + goto wait_kill; } if (ioctl(pty_fd, TIOCSCTTY, 0) < 0) { os_info("winch_thread : TIOCSCTTY failed on " "fd %d err = %d\n", pty_fd, errno); - exit(1); + goto wait_kill; } if (tcsetpgrp(pty_fd, os_getpid()) < 0) { os_info("winch_thread : tcsetpgrp failed on fd %d err = %d\n", pty_fd, errno); - exit(1); + goto wait_kill; } /* @@ -214,6 +214,12 @@ static int winch_thread(void *arg) os_info("winch_thread : write failed, err = %d\n", errno); } + +wait_kill: + c = 2; + count = write(pipe_fd, &c, sizeof(c)); + while (1) + pause(); } static int winch_tramp(int fd, struct tty_port *port, int *fd_out, |