Commit 902e09c8 authored Feb 03, 2025 by Al Viro

fix braino in "9p: fix ->rename_sem exclusion"



->d_op can bloody well be NULL

Fucked-up-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: 30d61efe "9p: fix ->rename_sem exclusion"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent 30d61efe

fs/dcache.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2967,11 +2967,11 @@ static int __d_unalias(struct dentry dentry, struct dentry alias)
		goto out_err;
		m2 = &alias->d_parent->d_inode->i_rwsem;
		out_unalias:
		if (alias->d_op->d_unalias_trylock &&
		if (alias->d_op && alias->d_op->d_unalias_trylock &&
		!alias->d_op->d_unalias_trylock(alias))
		goto out_err;
		__d_move(alias, dentry, false);
		if (alias->d_op->d_unalias_unlock)
		if (alias->d_op && alias->d_op->d_unalias_unlock)
		alias->d_op->d_unalias_unlock(alias);
		ret = 0;
		out_err: