]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - arch/um/sys-x86_64/signal.c
[PATCH] uml: change interface to boot_timer_handler
[linux-2.6-omap-h63xx.git] / arch / um / sys-x86_64 / signal.c
index 8fdaed06c10dcce12aed363bb7abe32788d8e441..fe1d065332b11d33f215a8f4a43654be69aff7a9 100644 (file)
@@ -104,28 +104,35 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
 int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
                         int fpsize)
 {
-       struct _fpstate *to_fp, *from_fp;
-       unsigned long sigs;
-       int err;
-
-       to_fp = to->fpstate;
-       from_fp = from->fpstate;
-       sigs = to->oldmask;
-       err = copy_from_user(to, from, sizeof(*to));
-       to->oldmask = sigs;
-       return(err);
+       struct _fpstate *to_fp, *from_fp;
+       unsigned long sigs;
+       int err;
+
+       to_fp = to->fpstate;
+       sigs = to->oldmask;
+       err = copy_from_user(to, from, sizeof(*to));
+       from_fp = to->fpstate;
+       to->fpstate = to_fp;
+       to->oldmask = sigs;
+       if(to_fp != NULL)
+               err |= copy_from_user(to_fp, from_fp, fpsize);
+       return(err);
 }
 
 int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp,
                       struct sigcontext *from, int fpsize)
 {
-       struct _fpstate *to_fp, *from_fp;
-       int err;
-
-       to_fp = (fp ? fp : (struct _fpstate *) (to + 1));
-       from_fp = from->fpstate;
-       err = copy_to_user(to, from, sizeof(*to));
-       return(err);
+       struct _fpstate *to_fp, *from_fp;
+       int err;
+
+       to_fp = (fp ? fp : (struct _fpstate *) (to + 1));
+       from_fp = from->fpstate;
+       err = copy_to_user(to, from, sizeof(*to));
+       if(from_fp != NULL){
+               err |= copy_to_user(&to->fpstate, &to_fp, sizeof(to->fpstate));
+               err |= copy_to_user(to_fp, from_fp, fpsize);
+       }
+       return(err);
 }
 
 #endif