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-rw-r--r--fs/pstore/inode.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 0d6bbcf47d52..57c0646479f5 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -199,11 +199,14 @@ static int pstore_unlink(struct inode *dir, struct dentry *dentry)
if (err)
return err;
- if (p->psi->erase)
+ if (p->psi->erase) {
+ mutex_lock(&p->psi->read_mutex);
p->psi->erase(p->type, p->id, p->count,
d_inode(dentry)->i_ctime, p->psi);
- else
+ mutex_unlock(&p->psi->read_mutex);
+ } else {
return -EPERM;
+ }
return simple_unlink(dir, dentry);
}