[PATCH] sysfs: fix compile warning in i386

[Zhang Yanfei <zhangyanfei@cn.fujitsu.com>]

This patch fixes compile warning in i386:

drivers/base/cpu.c: In function 'show_crash_notes_size':
drivers/base/cpu.c:142:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'unsigned int' [-Wformat]

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
---
 drivers/base/cpu.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index a55b590..ee38cc2 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -138,8 +138,10 @@ static ssize_t show_crash_notes_size(struct device *dev,
 				     char *buf)
 {
 	ssize_t rc;
+	unsigned long size;
 
-	rc = sprintf(buf, "%lu\n", sizeof(note_buf_t));
+	size = sizeof(note_buf_t);
+	rc = sprintf(buf, "%lu\n", size);
 	return rc;
 }
 static DEVICE_ATTR(crash_notes_size, 0400, show_crash_notes_size, NULL);
-- 
1.7.1