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From:   Yue Hu <zbestahu@gmail.com>
To:     gaoxiang25@huawei.com, yuchao0@huawei.com,
        gregkh@linuxfoundation.org
Cc:     linux-erofs@lists.ozlabs.org, devel@driverdev.osuosl.org,
        linux-kernel@vger.kernel.org, huyue2@yulong.com
Subject: [PATCH RESEND] staging: erofs: return the error value if fill_inline_data() fails
Date:   Wed, 26 Jun 2019 11:30:38 +0800
Message-Id: <20190626033038.9456-1-zbestahu@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Yue Hu <huyue2@yulong.com>

We should consider the error returned by fill_inline_data() when filling
last page in fill_inode(). If not getting inode will be successful even
though last page is bad. That is illogical. Also change -EAGAIN to 0 in
fill_inline_data() to stand for successful filling.

Signed-off-by: Yue Hu <huyue2@yulong.com>
---
 drivers/staging/erofs/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
index d6e1e16..1433f25 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -156,7 +156,7 @@ static int fill_inline_data(struct inode *inode, void *data,
 		inode->i_link = lnk;
 		set_inode_fast_symlink(inode);
 	}
-	return -EAGAIN;
+	return 0;
 }
 
 static int fill_inode(struct inode *inode, int isdir)
@@ -223,7 +223,7 @@ static int fill_inode(struct inode *inode, int isdir)
 		inode->i_mapping->a_ops = &erofs_raw_access_aops;
 
 		/* fill last page if inline data is available */
-		fill_inline_data(inode, data, ofs);
+		err = fill_inline_data(inode, data, ofs);
 	}
 
 out_unlock:
-- 
1.9.1