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Merge "USB: f_accessory: Check dev pointer before decoding ctrl request"

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Linux Build Service Account 2018-04-11 19:18:42 -07:00 • committed by Gerrit - the friendly Code Review server
commit 2e8cbd520c
1 changed files with 6 additions and 0 deletions
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6
drivers/usb/gadget/function/f_accessory.c
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@ -887,6 +887,12 @@ int acc_ctrlrequest(struct usb_composite_dev *cdev,
u16 w_length = le16_to_cpu(ctrl->wLength); u16 w_length = le16_to_cpu(ctrl->wLength);
unsigned long flags; unsigned long flags;
/*
* If instance is not created which is the case in power off charging
* mode, dev will be NULL. Hence return error if it is the case.
*/
if (!dev)
return -ENODEV;
/* /*
* printk(KERN_INFO "acc_ctrlrequest " * printk(KERN_INFO "acc_ctrlrequest "
* "%02x.%02x v%04x i%04x l%u\n", * "%02x.%02x v%04x i%04x l%u\n",