f2fs crypto: fix to handle errors likewise ext4

This patch makes some error handling policies same with ext4.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/crypto.c b/fs/f2fs/crypto.c
index be6af181e0f288611d0e805ae059b9b488aecf45..75d62fff8960513462e8e7d5a2c2162917f4455f 100644 (file)
--- a/fs/f2fs/crypto.c
+++ b/fs/f2fs/crypto.c
@@ -112,7 +112,7 @@ struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *inode)
        struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info;
 
        if (ci == NULL)
-               return ERR_PTR(-EACCES);
+               return ERR_PTR(-ENOKEY);
 
        /*
         * We first try getting the ctx from a free list because in
@@ -457,8 +457,8 @@ int f2fs_decrypt_one(struct inode *inode, struct page *page)
        struct f2fs_crypto_ctx *ctx = f2fs_get_crypto_ctx(inode);
        int ret;
 
-       if (!ctx)
-               return -ENOMEM;
+       if (IS_ERR(ctx))
+               return PTR_ERR(ctx);
        ret = f2fs_decrypt(ctx, page);
        f2fs_release_crypto_ctx(ctx);
        return ret;