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usb: gadget: udc: add null check before pointer dereference 

Add null check before dereferencing dev->regs pointer inside
net2280_led_shutdown() function.

Addresses-Coverity-ID: 101783
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Gustavo A. R. Silva 2017-05-02 11:37:22 -05:00 committed by Felipe Balbi
parent d94e64cb24
commit 53e720f332
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/gadget/udc/net2280.c
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@ -3573,7 +3573,6 @@ static void net2280_remove(struct pci_dev *pdev)
BUG_ON(dev->driver);
/* then clean up the resources we allocated during probe() */
net2280_led_shutdown(dev);
if (dev->requests) {
int i;
for (i = 1; i < 5; i++) {
@ -3588,8 +3587,10 @@ static void net2280_remove(struct pci_dev *pdev)
free_irq(pdev->irq, dev);
if (dev->quirks & PLX_PCIE)
pci_disable_msi(pdev);
if (dev->regs)
if (dev->regs) {
net2280_led_shutdown(dev);
iounmap(dev->regs);
}
if (dev->region)
release_mem_region(pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));