ia64: fix build breakage in asm/thread_info.h

In commit 504f52b5439aaf26d3e2c1d45ec10fce38c8dd27
    mm: NUMA aware alloc_task_struct_node()

Eric Dumazet forgot a "\".  Add it.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index 6392908..ff0cc84 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -91,7 +91,7 @@
 					     KERNEL_STACK_SIZE_ORDER);		\
 	struct task_struct *ret = page ? page_address(page) : NULL;		\
 										\
-	ret;
+	ret;									\
 })
 #define free_task_struct(tsk)	free_pages((unsigned long) (tsk), KERNEL_STACK_SIZE_ORDER)