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Commit 74fe0807 authored by Colin Cross's avatar Colin Cross Committed by Amit Pundir
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usb: gadget: adb: allow freezing in adb_read 



wait_event_interruptible in adb_read might return -ERESTARTSYS if
userspace is frozen during adb_read or another signal is delivered
to adb.  If so, don't set dev->error to avoid resetting the adb
connection.

Change-Id: I5a7baa013a9a3a3b5305de7e6a0d18546a560018
Signed-off-by: default avatarColin Cross <ccross@android.com>
parent ce61e830

drivers/usb/gadget/f_adb.c

+2 −1
Original line number Diff line number Diff line
@@ -313,6 +313,7 @@ static ssize_t adb_read(struct file *fp, char __user *buf, 
	/* wait for a request to complete */

	ret = wait_event_interruptible(dev->read_wq, dev->rx_done);

	if (ret < 0) {

		if (ret != -ERESTARTSYS)

			dev->error = 1;

		r = ret;

		usb_ep_dequeue(dev->ep_out, req);