[PATCH v2] xen: fix memory leak in __xen_pcibk_add_pci_dev()

[Daeseok Youn]

It need to free dev_entry when it failed to assign to a new
slot on the virtual PCI bus.

smatch says:
 drivers/xen/xen-pciback/vpci.c:142 __xen_pcibk_add_pci_dev() warn:
possible memory leak of 'dev_entry'

Signed-off-by: Daeseok Youn <daeseok.youn@xxxxxxxxx>
---
v2: The kfree() invocation is moved outside the locked region.

 drivers/xen/xen-pciback/vpci.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/xen/xen-pciback/vpci.c b/drivers/xen/xen-pciback/vpci.c
index 3165ce3..51afff9 100644
--- a/drivers/xen/xen-pciback/vpci.c
+++ b/drivers/xen/xen-pciback/vpci.c
@@ -137,6 +137,8 @@ unlock:
 	/* Publish this device. */
 	if (!err)
 		err = publish_cb(pdev, 0, 0, PCI_DEVFN(slot, func), devid);
+	else
+		kfree(dev_entry);
 
 out:
 	return err;
-- 
1.7.4.4


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