[PATCH 3.16 060/132] p54: drop device reference count if fails to enable device

[Ben Hutchings]

3.16.74-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Pan Bian <bianpan2016@xxxxxxx>

commit 8149069db81853570a665f5e5648c0e526dc0e43 upstream.

The function p54p_probe takes an extra reference count of the PCI
device. However, the extra reference count is not dropped when it fails
to enable the PCI device. This patch fixes the bug.

Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
Acked-by: Christian Lamparter <chunkeey@xxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/net/wireless/p54/p54pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -551,7 +551,7 @@ static int p54p_probe(struct pci_dev *pd
 	err = pci_enable_device(pdev);
 	if (err) {
 		dev_err(&pdev->dev, "Cannot enable new PCI device\n");
-		return err;
+		goto err_put;
 	}
 
 	mem_addr = pci_resource_start(pdev, 0);
@@ -636,6 +636,7 @@ static int p54p_probe(struct pci_dev *pd
 	pci_release_regions(pdev);
  err_disable_dev:
 	pci_disable_device(pdev);
+err_put:
 	pci_dev_put(pdev);
 	return err;
 }