usb: gadget: udc: remove pointer dereference after free
authorGustavo A. R. Silva <garsilva@embeddedor.com>
Fri, 10 Mar 2017 21:39:32 +0000 (15:39 -0600)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Wed, 22 Mar 2017 09:21:10 +0000 (11:21 +0200)
Remove pointer dereference after free.

Addresses-Coverity-ID: 1091173
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/udc/pch_udc.c

index a97da645c1b9eaecc5e5bb0bcb5ad25857c43ec8..8a365aad66fe2e38eaf0a869ae0f774349f694f2 100644 (file)
@@ -1523,7 +1523,6 @@ static void pch_udc_free_dma_chain(struct pch_udc_dev *dev,
                td = phys_to_virt(addr);
                addr2 = (dma_addr_t)td->next;
                pci_pool_free(dev->data_requests, td, addr);
-               td->next = 0x00;
                addr = addr2;
        }
        req->chain_len = 1;