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ecryptfs: fixed testing of file descriptor flags 

This patch replaces the check (lower_file->f_flags & O_RDONLY) with
((lower_file & O_ACCMODE) == O_RDONLY).

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
This commit is contained in:
Roberto Sassu 2010-11-03 11:11:34 +01:00 committed by Tyler Hicks
parent 27992890b0
commit 0abe116947
1 changed files with 2 additions and 2 deletions
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4
fs/ecryptfs/file.c
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@ -199,8 +199,8 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
ecryptfs_dentry->d_name.name, rc); ecryptfs_dentry->d_name.name, rc);
goto out_free; goto out_free;
} }
if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY) if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_ACCMODE)
&& !(file->f_flags & O_RDONLY)) { == O_RDONLY && (file->f_flags & O_ACCMODE) != O_RDONLY) {
rc = -EPERM; rc = -EPERM;
printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs " printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
"file must hence be opened RO\n", __func__); "file must hence be opened RO\n", __func__);