From 73d79aaba9ee21aaa1a6676f568ef7b3bdf993ea Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Fri, 28 Mar 2008 14:50:27 -0700 Subject: [PATCH] USB: mem leak fixes for AMD 5536 UDC high/full speed USB device controller driver In drivers/usb/gadget/amd5536udc.c::udc_pci_probe(), sizeof(struct udc) storage is allocated for 'dev'. There are many exit points from the function where 'dev' is not free'd but has also not yet been used for anything. The following patch free's 'dev' at the return points where it has not yet been used. Signed-off-by: Jesper Juhl Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/amd5536udc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index b663f23f2642..fc6f3483be44 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3248,6 +3248,8 @@ static int udc_pci_probe( /* pci setup */ if (pci_enable_device(pdev) < 0) { + kfree(dev); + dev = 0; retval = -ENODEV; goto finished; } @@ -3259,6 +3261,8 @@ static int udc_pci_probe( if (!request_mem_region(resource, len, name)) { dev_dbg(&pdev->dev, "pci device used already\n"); + kfree(dev); + dev = 0; retval = -EBUSY; goto finished; } @@ -3267,18 +3271,24 @@ static int udc_pci_probe( dev->virt_addr = ioremap_nocache(resource, len); if (dev->virt_addr == NULL) { dev_dbg(&pdev->dev, "start address cannot be mapped\n"); + kfree(dev); + dev = 0; retval = -EFAULT; goto finished; } if (!pdev->irq) { dev_err(&dev->pdev->dev, "irq not set\n"); + kfree(dev); + dev = 0; retval = -ENODEV; goto finished; } if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) { dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq); + kfree(dev); + dev = 0; retval = -EBUSY; goto finished; } -- 2.20.1