wrap access to thread_info

Recently a few direct accesses to the thread_info in the task structure snuck
back, so this wraps them with the appropriate wrapper.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
index 9169859..d281475 100644
--- a/include/asm-ia64/thread_info.h
+++ b/include/asm-ia64/thread_info.h
@@ -110,6 +110,6 @@
 
 #define TS_POLLING		1 	/* true if in idle loop and not sleeping */
 
-#define tsk_is_polling(t) ((t)->thread_info->status & TS_POLLING)
+#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
 
 #endif /* _ASM_IA64_THREAD_INFO_H */