[PATCH] uml: Fixes raw() and uses it in check_one_sigio; also fixes a silly panic (EINTR returned by call).

Fixes raw() and uses it in check_one_sigio; also fixes a silly panic (EINTR
returned by call).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>