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udf: avoid unneeded up_write when fail to add entry in ->symlink

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We have released the ->i_data_sem before invoking udf_add_entry(),
so in following error path, we should not release this lock again.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Chao Yu 2014-08-09 09:49:31 +08:00 committed by Jan Kara
parent 7d1311b93e
commit 85cd083b49
1 changed files with 2 additions and 1 deletions
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3
fs/udf/namei.c
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@ -1014,7 +1014,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi)
goto out_no_entry;
goto out_fail;
cfi.icb.extLength = cpu_to_le32(sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(iinfo->i_location);
if (UDF_SB(inode->i_sb)->s_lvid_bh) {
@ -1036,6 +1036,7 @@ out:
out_no_entry:
up_write(&iinfo->i_data_sem);
out_fail:
inode_dec_link_count(inode);
iput(inode);
goto out;