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Subject[Patch] uml: fix one compile error

This patch fixed the following compile error:

CC arch/um/sys-i386/signal.o
/home/wangcong/Projects/linux-2.6/arch/um/sys-i386/signal.c: In
function 'copy_sc_from_user':
/home/wangcong/Projects/linux-2.6/arch/um/sys-i386/signal.c:182:
warning: dereferencing 'void *' pointer
/home/wangcong/Projects/linux-2.6/arch/um/sys-i386/signal.c:182:
error: request for member '_fxsr_env' in something not a structure or
union


Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: jdike@addtoit.com

---
diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
index fd0c25a..1296473 100644
--- a/arch/um/sys-i386/signal.c
+++ b/arch/um/sys-i386/signal.c
@@ -179,7 +179,8 @@ static int copy_sc_from_user(struct pt_regs *regs,
if (have_fpx_regs) {
struct user_fxsr_struct fpx;

- err = copy_from_user(&fpx, &sc.fpstate->_fxsr_env[0],
+ err = copy_from_user(&fpx,
+ &((struct _fpstate __user *)sc.fpstate)->_fxsr_env[0],
sizeof(struct user_fxsr_struct));
if (err)
return 1;


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