uml: console subsystem tidying

This does a lot of cleanup on the UML console system.  This patch should be
entirely non-functional.

The tidying is as follows:
	header cleanups - the includes should be closer to minimal and complete
	all printks now have a severity
	lots of style fixes
	fd_close is restructured a little in order to reduce the nesting
	some functions were calling the os_* wrappers when they can
call libc directly
	port_accept had a unnecessary variable
	it also tested a pid unecessarily before killing it
	some functions were made static
	xterm_free is gone, as it was identical to generic_free

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 10 insertions, 4 deletions

diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c
index 1e3fd61..4123fe1 100644
--- a/arch/um/drivers/pty.c
+++ b/arch/um/drivers/pty.c
@@ -56,11 +56,11 @@ static int pts_open(int input, int output, int primary, void *d,
 	if (data->raw) {
 		CATCH_EINTR(err = tcgetattr(fd, &data->tt));
 		if (err)
-			return err;
+			goto out_close;
 
 		err = raw(fd);
 		if (err)
-			return err;
+			goto out_close;
 	}
 
 	dev = ptsname(fd);
@@ -71,6 +71,10 @@ static int pts_open(int input, int output, int primary, void *d,
 		(*data->announce)(dev, data->dev);
 
 	return fd;
+
+out_close:
+	close(fd);
+	return err;
 }
 
 static int getmaster(char *line)
@@ -119,10 +123,12 @@ static int pty_open(int input, int output, int primary, void *d,
 	if (fd < 0)
 		return fd;
 
-	if(data->raw){
+	if (data->raw) {
 		err = raw(fd);
-		if (err)
+		if (err) {
+			close(fd);
 			return err;
+		}
 	}
 	
 	if (data->announce)