drivers: fix up various ->llseek() implementations

Fix up a few ->llseek() implementations that won't deal with SEEK_HOLE/SEEK_DATA
properly.  Make them future proof so that if we ever add new options they will
return -EINVAL.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 166f1e7aaa7e..da3cfee782dc 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -224,6 +224,8 @@ static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
         case 2:
                 offset += NVRAM_BYTES;
                 break;
+        default:
+                return -EINVAL;
         }
 
         return (offset >= 0) ? (file->f_pos = offset) : -EINVAL;