diff options
| author | Jeff Dike <jdike@addtoit.com> | 2005-06-08 15:48:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-08 16:21:12 -0700 |
| commit | 1f96ddb4fb40961a8ebebf7a00bbfaad55aacbd2 (patch) | |
| tree | 7c6ede0fdab8d85c29145c9ad1ae0f5ce9d56143 /arch/um/drivers | |
| parent | 501cb02b431fb88c7f157c46c8b54de59d1dd463 (diff) | |
[PATCH] uml: clean up error path
This cleans an error path which used to leak file descriptors by returning
without trying to tidy up.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/drivers')
| -rw-r--r-- | arch/um/drivers/chan_user.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 96f3a477c95e..5d3768156c92 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -143,22 +143,22 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) { struct winch_data data; unsigned long stack; - int fds[2], pid, n, err; + int fds[2], n, err; char c; err = os_pipe(fds, 1, 1); if(err < 0){ printk("winch_tramp : os_pipe failed, err = %d\n", -err); - return(err); + goto out; } data = ((struct winch_data) { .pty_fd = fd, .pipe_fd = fds[1], .close_me = fds[0] } ); - pid = run_helper_thread(winch_thread, &data, 0, &stack, 0); - if(pid < 0){ + err = run_helper_thread(winch_thread, &data, 0, &stack, 0); + if(err < 0){ printk("fork of winch_thread failed - errno = %d\n", errno); - return(pid); + goto out_close; } os_close_file(fds[1]); @@ -168,14 +168,22 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) printk("winch_tramp : failed to read synchronization byte\n"); printk("read failed, err = %d\n", -n); printk("fd %d will not support SIGWINCH\n", fd); - pid = -1; + err = -EINVAL; + goto out_close1; } - return(pid); + return err ; + + out_close: + os_close_file(fds[1]); + out_close1: + os_close_file(fds[0]); + out: + return err; } void register_winch(int fd, struct tty_struct *tty) { - int pid, thread, thread_fd; + int pid, thread, thread_fd = -1; int count; char c = 1; |