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9p/trans_virtio: Remove sysfs file on probe failure
commitf997ea3b7a
upstream. This ensures we don't leak the sysfs file if we failed to allocate chan->vc_wq during probe. Link: http://lkml.kernel.org/r/20210517083557.172-1-xieyongji@bytedance.com Fixes:86c8437383
("net/9p: Add sysfs mount_tag file for virtio 9P device") Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 3 additions and 1 deletions
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@ -610,7 +610,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
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chan->vc_wq = kmalloc(sizeof(wait_queue_head_t), GFP_KERNEL);
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if (!chan->vc_wq) {
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err = -ENOMEM;
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goto out_free_tag;
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goto out_remove_file;
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}
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init_waitqueue_head(chan->vc_wq);
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chan->ring_bufs_avail = 1;
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@ -628,6 +628,8 @@ static int p9_virtio_probe(struct virtio_device *vdev)
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return 0;
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out_remove_file:
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sysfs_remove_file(&vdev->dev.kobj, &dev_attr_mount_tag.attr);
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out_free_tag:
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kfree(tag);
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out_free_vq:
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