1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 0358c05e6e8..c5753c79773 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1218,6 +1218,11 @@ static int hcd_alloc_coherent(struct usb_bus *bus,
 {
         unsigned char *vaddr;
 
+        if (*vaddr_handle == NULL) {
+                WARN_ON_ONCE(1);
+                return -EFAULT;
+        }
+
         vaddr = hcd_buffer_alloc(bus, size + sizeof(vaddr),
                                  mem_flags, dma_handle);
         if (!vaddr)