uml: tidy fault code

Tidying in preparation for the segfault register dumping patch which follows.

void * pointers are changed to union uml_pt_regs *.  This makes the types
match reality, except in arch_fixup, which is changed to operate on a union
uml_pt_regs.  This fixes a bug in the call from segv_handler, which passes a
union uml_pt_regs, to segv, which expects to pass a struct sigcontext to
arch_fixup.

Whitespace and other style fixes.

There's also a errno printk fix.

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, 2 insertions, 16 deletions

diff --git a/arch/um/sys-i386/fault.c b/arch/um/sys-i386/fault.c
index d0bbcdfdb53f..745b4fd49e9f 100644
--- a/arch/um/sys-i386/fault.c
+++ b/arch/um/sys-i386/fault.c
@@ -3,9 +3,7 @@
  * Licensed under the GPL
  */
 
-#include <signal.h>
 #include "sysdep/ptrace.h"
-#include "sysdep/sigcontext.h"
 
 /* These two are from asm-um/uaccess.h and linux/module.h, check them. */
 struct exception_table_entry
@@ -17,26 +15,14 @@ struct exception_table_entry
 const struct exception_table_entry *search_exception_tables(unsigned long add);
 
 /* Compare this to arch/i386/mm/extable.c:fixup_exception() */
-int arch_fixup(unsigned long address, void *sc_ptr)
+int arch_fixup(unsigned long address, union uml_pt_regs *regs)
 {
-        struct sigcontext *sc = sc_ptr;
         const struct exception_table_entry *fixup;
 
         fixup = search_exception_tables(address);
         if(fixup != 0){
-                sc->eip = fixup->fixup;
+                UPT_IP(regs) = fixup->fixup;
                 return(1);
         }
         return(0);
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */