[PATCH] uml: hot-unplug code cleanup

Clean up the hot-unplugging code.  There is now an id procedure which is
called to figure out what device we're talking to.  The error messages from
that are now done from mconsole_remove instead of the driver.  remove is now
called with the device number, after it has been checked, so doesn't need to
do sanity checking on it.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 4 insertions, 2 deletions

diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index 4c5e92c04ccb..5323d22a6ca7 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -101,7 +101,8 @@ extern void lines_init(struct line *lines, int nlines);
 extern void close_lines(struct line *lines, int nlines);
 
 extern int line_config(struct line *lines, unsigned int sizeof_lines, char *str);
-extern int line_remove(struct line *lines, unsigned int sizeof_lines, char *str);
+extern int line_id(char **str, int *start_out, int *end_out);
+extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
 extern int line_get_config(char *dev, struct line *lines, unsigned int sizeof_lines, char *str,
                            int size, char **error_out);
 
diff --git a/arch/um/include/mconsole_kern.h b/arch/um/include/mconsole_kern.h
index 61c274fcee5d..d86ee14260ce 100644
--- a/arch/um/include/mconsole_kern.h
+++ b/arch/um/include/mconsole_kern.h
@@ -20,7 +20,8 @@ struct mc_device {
         char *name;
         int (*config)(char *);
         int (*get_config)(char *, char *, int, char **);
-        int (*remove)(char *);
+        int (*id)(char **, int *, int *);
+        int (*remove)(int);
 };
 
 #define CONFIG_CHUNK(str, size, current, chunk, end) \