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authorJesper Juhl <jesper.juhl@gmail.com>2008-03-28 14:50:27 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:47 -0700
commit73d79aaba9ee21aaa1a6676f568ef7b3bdf993ea (patch)
tree13ac17bdca5816cc7b7c5124823905be1139f35f /drivers/usb/gadget/amd5536udc.c
parent148d9fe4c91a6356dae1b05b76b8133586c26be4 (diff)
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 <jesper.juhl@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/amd5536udc.c')
-rw-r--r--drivers/usb/gadget/amd5536udc.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index b663f23f264..fc6f3483be4 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;
}