virtio-mmio: Use PTR_ERR_OR_ZERO()

Fix ptr_ret.cocci warnings:
drivers/virtio/virtio_mmio.c:653:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index c92131e..b43ac9b 100644 (file)
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -662,10 +662,8 @@ static int vm_cmdline_set(const char *device,
        pdev = platform_device_register_resndata(&vm_cmdline_parent,
                        "virtio-mmio", vm_cmdline_id++,
                        resources, ARRAY_SIZE(resources), NULL, 0);
-       if (IS_ERR(pdev))
-               return PTR_ERR(pdev);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(pdev);
 }
 
 static int vm_cmdline_get_device(struct device *dev, void *data)