vfs: clarify that nonseekable_open() will never fail

Signed-off-by: Dmitry Torokhov <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: John Kacur <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/fs/open.c b/fs/open.c
index b715d06fbe3646c2449db8ae177af42ced0bb12c..630715f9f73d0e9ae4370a339eb5163a8bb55ca0 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -1031,7 +1031,9 @@ EXPORT_SYMBOL(generic_file_open);
 
 /*
  * This is used by subsystems that don't want seekable
- * file descriptors
+ * file descriptors. The function is not supposed to ever fail, the only
+ * reason it returns an 'int' and not 'void' is so that it can be plugged
+ * directly into file_operations structure.
  */
 int nonseekable_open(struct inode *inode, struct file *filp)
 {