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fs: 9p: fix v9fs_file_open writeback fid error check

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IS_ERR() and PTR_ERR() use wrong pointer, it should be
writeback_fid, fix it.

Link: http://lkml.kernel.org/r/20210330130632.1054357-1-yangyingliang@huawei.com
Fixes: 5bfe97d738 ("9p: Fix writeback fid incorrectly being attached to dentry")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
[Dominique: adjusted commit summary]
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This commit is contained in:
Yang Yingliang 2021-03-30 21:06:32 +08:00 committed by Dominique Martinet
parent 0dae52282a
commit f8b139e2f2
1 changed files with 2 additions and 2 deletions
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4
fs/9p/vfs_file.c
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@ -86,8 +86,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
* to work.
*/
writeback_fid = v9fs_writeback_fid(file_dentry(file));
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
if (IS_ERR(writeback_fid)) {
err = PTR_ERR(writeback_fid);
mutex_unlock(&v9inode->v_mutex);
goto out_error;
}