From: Peter Chen <peter.chen@xxxxxxx>
cdev->config is checked for null pointer at above code, so cdev->config
might be null, fix it by adding null pointer check.
Signed-off-by: Peter Chen <peter.chen@xxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
(cherry picked from commit c526c62d565ea5a5bba9433f28756079734f430d)
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/usb/gadget/composite.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 58f5fbdb6959..8bf54477f472 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1819,6 +1819,8 @@ unknown:
break;
case USB_RECIP_ENDPOINT:
+ if (!cdev->config)
+ break;
endp = ((w_index & 0x80) >> 3) | (w_index & 0x0f);
list_for_each_entry(f, &cdev->config->functions, list) {
if (test_bit(endp, f->endpoints))
--
2.20.0
