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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-10 15:02:37 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-10 15:02:37 +0000
commitfad837c16cdd856c68ce2e1335ad0fe836ed8ecd (patch)
tree1a6babdc2ac7e5388c482e93505fdfaf5ff97f61 /drivers/base/devtmpfs.c
parent51c6ab130642ed975681df843c772dda48a1d2ed (diff)
parent57d54889cd00db2752994b389ba714138652e60c (diff)
Merge commit 'v2.6.34-rc1' into for-2.6.35
Diffstat (limited to 'drivers/base/devtmpfs.c')
-rw-r--r--drivers/base/devtmpfs.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 42ae452b36b0..dac478c6e460 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -301,6 +301,19 @@ int devtmpfs_delete_node(struct device *dev)
if (dentry->d_inode) {
err = vfs_getattr(nd.path.mnt, dentry, &stat);
if (!err && dev_mynode(dev, dentry->d_inode, &stat)) {
+ struct iattr newattrs;
+ /*
+ * before unlinking this node, reset permissions
+ * of possible references like hardlinks
+ */
+ newattrs.ia_uid = 0;
+ newattrs.ia_gid = 0;
+ newattrs.ia_mode = stat.mode & ~0777;
+ newattrs.ia_valid =
+ ATTR_UID|ATTR_GID|ATTR_MODE;
+ mutex_lock(&dentry->d_inode->i_mutex);
+ notify_change(dentry, &newattrs);
+ mutex_unlock(&dentry->d_inode->i_mutex);
err = vfs_unlink(nd.path.dentry->d_inode,
dentry);
if (!err || err == -ENOENT)