USB: ssb: use devm_kzalloc

Instead of manually handling the frees use devm. There was also a free
missing in the unregister call which is not needed with devm.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ssb-hcd.c b/drivers/usb/host/ssb-hcd.c
index 623cb0b..62b6b78 100644 (file)
--- a/drivers/usb/host/ssb-hcd.c
+++ b/drivers/usb/host/ssb-hcd.c
@@ -166,7 +166,8 @@ static int ssb_hcd_probe(struct ssb_device *dev,
        if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
                return -EOPNOTSUPP;
 
-       usb_dev = kzalloc(sizeof(struct ssb_hcd_device), GFP_KERNEL);
+       usb_dev = devm_kzalloc(dev->dev, sizeof(struct ssb_hcd_device),
+                              GFP_KERNEL);
        if (!usb_dev)
                return -ENOMEM;
 
@@ -181,10 +182,8 @@ static int ssb_hcd_probe(struct ssb_device *dev,
        start = ssb_admatch_base(tmp);
        len = (coreid == SSB_DEV_USB20_HOST) ? 0x800 : ssb_admatch_size(tmp);
        usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, true, start, len);
-       if (IS_ERR(usb_dev->ohci_dev)) {
-               err = PTR_ERR(usb_dev->ohci_dev);
-               goto err_free_usb_dev;
-       }
+       if (IS_ERR(usb_dev->ohci_dev))
+               return PTR_ERR(usb_dev->ohci_dev);
 
        if (coreid == SSB_DEV_USB20_HOST) {
                start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */
@@ -200,8 +199,6 @@ static int ssb_hcd_probe(struct ssb_device *dev,
 
 err_unregister_ohci_dev:
        platform_device_unregister(usb_dev->ohci_dev);
-err_free_usb_dev:
-       kfree(usb_dev);
        return err;
 }