vfs: fix check for fallocate on active swapfile

commit 6d2b6170c8914c6c69256b687651fb16d7ec3e18 upstream.

Fix the broken check for calling sys_fallocate() on an active swapfile,
introduced by commit 0790b31b69374ddadefe ("fs: disallow all fallocate
operation on active swapfile").

Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/open.c b/fs/open.c
index 9d64679cec73b00fc4685e23d69374ca122fed09..dd24f21d31f7e4ea478eea5431d19f250c0fa493 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -263,11 +263,10 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
                return -EPERM;
 
        /*
-        * We can not allow to do any fallocate operation on an active
-        * swapfile
+        * We cannot allow any fallocate operation on an active swapfile
         */
        if (IS_SWAPFILE(inode))
-               ret = -ETXTBSY;
+               return -ETXTBSY;
 
        /*
         * Revalidate the write permissions, in case security policy has