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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-21 09:48:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-21 09:48:31 +0200 |
| commit | 03e3e31ee5c8d45c62c31035578bab5e90133eff (patch) | |
| tree | 5cff3fda5bb8278621c27823f52b7e8dd85fb0ef /drivers/block | |
| parent | misc: alcor_pci: fix null-ptr-deref when there is no PCI bridge (diff) | |
| parent | Merge tag 'char-misc-5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc (diff) | |
| download | linux-dev-03e3e31ee5c8d45c62c31035578bab5e90133eff.tar.xz linux-dev-03e3e31ee5c8d45c62c31035578bab5e90133eff.zip | |
Merge 50f09a3dd587 ("Merge tag 'char-misc-5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc") into char-misc-next
We want the char/misc driver fixes in here as well
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nbd.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 4ff71b579cfc..45d2c28c8fc8 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1980,7 +1980,8 @@ static void nbd_disconnect_and_put(struct nbd_device *nbd) * config ref and try to destroy the workqueue from inside the work * queue. */ - flush_workqueue(nbd->recv_workq); + if (nbd->recv_workq) + flush_workqueue(nbd->recv_workq); if (test_and_clear_bit(NBD_RT_HAS_CONFIG_REF, &nbd->config->runtime_flags)) nbd_config_put(nbd); @@ -2014,12 +2015,11 @@ static int nbd_genl_disconnect(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } mutex_unlock(&nbd_index_mutex); - if (!refcount_inc_not_zero(&nbd->config_refs)) { - nbd_put(nbd); - return 0; - } + if (!refcount_inc_not_zero(&nbd->config_refs)) + goto put_nbd; nbd_disconnect_and_put(nbd); nbd_config_put(nbd); +put_nbd: nbd_put(nbd); return 0; } |