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Commit fae8773b authored by Bryan O'Sullivan's avatar Bryan O'Sullivan Committed by Roland Dreier
Browse files

IB/ipath: Check return value of lookup_one_len 



This fixes kernel.org bug 8003.

Signed-off-by: default avatarBryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent e07832b6

drivers/infiniband/hw/ipath/ipath_fs.c

+15 −1
Original line number Diff line number Diff line
@@ -451,12 +451,18 @@ static int create_device_files(struct super_block *sb, 
	return ret;

}



static void remove_file(struct dentry *parent, char *name)

static int remove_file(struct dentry *parent, char *name)

{

	struct dentry *tmp;

	int ret;



	tmp = lookup_one_len(name, parent, strlen(name));



	if (IS_ERR(tmp)) {

		ret = PTR_ERR(tmp);

		goto bail;

	}



	spin_lock(&dcache_lock);

	spin_lock(&tmp->d_lock);

	if (!(d_unhashed(tmp) && tmp->d_inode)) {
@@ -469,6 +475,14 @@ static void remove_file(struct dentry *parent, char *name) 
		spin_unlock(&tmp->d_lock);

		spin_unlock(&dcache_lock);

	}



	ret = 0;

bail:

	/*

	 * We don't expect clients to care about the return value, but

	 * it's there if they need it.

	 */

	return ret;

}



static int remove_device_files(struct super_block *sb,