don't open-code generic_file_llseek_size()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 97c2d8d..0129232 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -110,6 +110,7 @@
#include <linux/io.h>
#include <linux/uaccess.h>
#include <linux/mutex.h>
+#include <linux/pagemap.h>
static DEFINE_MUTEX(nvram_mutex);
@@ -213,21 +214,8 @@
static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
{
- switch (origin) {
- case 0:
- /* nothing to do */
- break;
- case 1:
- offset += file->f_pos;
- break;
- case 2:
- offset += NVRAM_BYTES;
- break;
- default:
- return -EINVAL;
- }
-
- return (offset >= 0) ? (file->f_pos = offset) : -EINVAL;
+ return generic_file_llseek_size(file, offset, origin, MAX_LFS_FILESIZE,
+ NVRAM_BYTES);
}
static ssize_t nvram_read(struct file *file, char __user *buf,