vfs: fix check for fallocate on active swapfile

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>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/open.c b/fs/open.c
index 36662d036237..d6fd3acde134 100644
--- 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