lirc: make chardev nonseekable

There does not seem to be a need for lirc to
allow seeking on the file descriptor, so let's
just disallow this before users start relying
on it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/IR/lirc_dev.c b/drivers/media/IR/lirc_dev.c
index 899891bec35..5b145e8672f 100644
--- a/drivers/media/IR/lirc_dev.c
+++ b/drivers/media/IR/lirc_dev.c
@@ -460,6 +460,8 @@ error:
 
 	mutex_unlock(&lirc_dev_lock);
 
+	nonseekable_open(inode, file);
+
 	return retval;
 }
 EXPORT_SYMBOL(lirc_dev_fop_open);