fix-ext4_get_crypto_ctx-in-ext4_decrypt_one

   1 ext4 crypto: fix ext4_get_crypto_ctx()'s calling convention in ext4_decrypt_one
   2
   3 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
   4 ---
   5  fs/ext4/crypto.c | 4 ++--
   6  1 file changed, 2 insertions(+), 2 deletions(-)
   7
   8 diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
   9 index f5c82e8..4573155 100644
  10 --- a/fs/ext4/crypto.c
  11 +++ b/fs/ext4/crypto.c
  12 @@ -396,8 +396,8 @@ int ext4_decrypt_one(struct inode *inode, struct page *page)
  13
  14         struct ext4_crypto_ctx *ctx = ext4_get_crypto_ctx(inode);
  15
  16 -       if (!ctx)
  17 -               return -ENOMEM;
  18 +       if (IS_ERR(ctx))
  19 +               return PTR_ERR(ctx);
  20         ret = ext4_decrypt(ctx, page);
  21         ext4_release_crypto_ctx(ctx);
  22         return ret;