forcedeth: Fix an error handling path in nv_probe()

commit 5b17a4971d3b2a073f4078dd65331efbe35baa2d upstream.

If an error occures after calling nv_mgmt_acquire_sema(), it should be
undone with a corresponding nv_mgmt_release_sema() call.

Add it in the error handling path of the probe as already done in the
remove function.

Fixes: cac1c52c3621 ("forcedeth: mgmt unit interface")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Link: https://lore.kernel.org/r/355e9a7d351b32ad897251b6f81b5886fcdc6766.1684571393.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 994a83a1f0a5c5ae31a43b550ac7a2f1afee8ca3..3e8477e697c5251731168b700439b2602ce5e1ee 100644 (file)
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -6020,6 +6020,7 @@ static int nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
        return 0;
 
 out_error:
+       nv_mgmt_release_sema(dev);
        if (phystate_orig)
                writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
 out_freering: