[PATCH] kdump: export per cpu crash notes pointer through sysfs (fix)

Removes the call to get_cpu() and put_cpu() as it is not required.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 982e6583cd633a533fe8a7dbdfe30edc3cbd5437..07a7f97e1de9d95a488f9fea90288052786f6e98 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -101,10 +101,8 @@ static ssize_t show_crash_notes(struct sys_device *dev, char *buf)
         * boot up and this data does not change there after. Hence this
         * operation should be safe. No locking required.
         */
-       get_cpu();
        addr = __pa(per_cpu_ptr(crash_notes, cpunum));
        rc = sprintf(buf, "%Lx\n", addr);
-       put_cpu();
        return rc;
 }
 static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL);