[PATCH] fix for idiocy in mount_root cleanups.

[Alexander Viro]

	Grr...  OK, that should be a lesson - never do obvious change
just before sending a patch.

	Change in question was s/do_mount/mount/.  Which is almost
the same thing, except for one little detail:  mount(2) in case of
error returns -1 and stores the error in errno.  do_mount(9), OTOH...

IOW, please apply the following and pass me a brown paperbag ;-/

--- C1-pre7/init/do_mounts.c	Fri Dec  7 20:48:43 2001
+++ linux/init/do_mounts.c	Sat Dec  8 06:29:20 2001
@@ -351,8 +351,9 @@
 		mount("devfs", ".", "devfs", 0, NULL);
 retry:
 	for (p = fs_names; *p; p += strlen(p)+1) {
-		err = mount(name,"/root",p,root_mountflags,root_mount_data);
-		switch (err) {
+		errno = 0;
+		mount(name,"/root",p,root_mountflags,root_mount_data);
+		switch (-errno) {
 			case 0:
 				goto done;
 			case -EACCES: