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Commit 1f96ddb4 authored by Jeff Dike's avatar Jeff Dike Committed by Linus Torvalds
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[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: default avatarJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 501cb02b

arch/um/drivers/chan_user.c

+16 −8
Original line number Diff line number Diff line
@@ -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;