ps3flash: switch to generic_file_llseek_size()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 26 deletions

diff --git a/drivers/char/ps3flash.c b/drivers/char/ps3flash.c
index 8cafa9ccd43f..0b311fa277ef 100644
--- a/drivers/char/ps3flash.c
+++ b/drivers/char/ps3flash.c
@@ -98,32 +98,8 @@ static int ps3flash_fetch(struct ps3_storage_device *dev, u64 start_sector)
 static loff_t ps3flash_llseek(struct file *file, loff_t offset, int origin)
 {
         struct ps3_storage_device *dev = ps3flash_dev;
-        loff_t res;
-
-        mutex_lock(&file->f_mapping->host->i_mutex);
-        switch (origin) {
-        case 0:
-                break;
-        case 1:
-                offset += file->f_pos;
-                break;
-        case 2:
-                offset += dev->regions[dev->region_idx].size*dev->blk_size;
-                break;
-        default:
-                offset = -1;
-        }
-        if (offset < 0) {
-                res = -EINVAL;
-                goto out;
-        }
-
-        file->f_pos = offset;
-        res = file->f_pos;
-
-out:
-        mutex_unlock(&file->f_mapping->host->i_mutex);
-        return res;
+        return generic_file_llseek_size(file, offset, origin, MAX_LFS_FILESIZE,
+                        dev->regions[dev->region_idx].size*dev->blk_size);
 }
 
 static ssize_t ps3flash_read(char __user *userbuf, void *kernelbuf,