[PATCH v2 v2] PCI/MSI: Fix memory leak in pci_alloc_irq_vectors_affinity INTx path

[neilfsun <loyou85@gmail.com>]

In the INTx fallback path of pci_alloc_irq_vectors_affinity(),
affinity masks are created and never freed.

Signed-off-by: neilfsun <neilfsun@tencent.com>
Signed-off-by: Sun Feng <loyou85@gmail.com>
Reviewed-by: Hans Zhang <18255117159@163.com>
---
v2: use __free to auto-release pointers
---
 drivers/pci/msi/api.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c
index c18559b6272c..994f12813ce3 100644
--- a/drivers/pci/msi/api.c
+++ b/drivers/pci/msi/api.c
@@ -285,8 +285,10 @@ int pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs,
 			 * the device driver can adjust queue configuration
 			 * for the single interrupt case.
 			 */
-			if (affd)
-				irq_create_affinity_masks(1, affd);
+			if (affd) {
+				struct irq_affinity_desc *masks __free(kfree) =
+					irq_create_affinity_masks(1, affd);
+			}
 			pci_intx(dev, 1);
 			return 1;
 		}
-- 
2.52.0