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>
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 @@
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 @@
(*data->announce)(dev, data->dev);
return fd;
+
+out_close:
+ close(fd);
+ return err;
}
static int getmaster(char *line)
@@ -119,10 +123,12 @@
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)