evie/android_kernel_oneplus_msm8998
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usb: gadget: adb: allow freezing in adb_read

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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: Colin Cross <ccross@android.com>
This commit is contained in:
Colin Cross 2012-03-05 13:29:45 -08:00 • committed by John Stultz
parent 272014a78e
commit fe7aa575bb
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/gadget/f_adb.c
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@ -313,7 +313,8 @@ requeue_req:
/* wait for a request to complete */
ret = wait_event_interruptible(dev->read_wq, dev->rx_done);
if (ret < 0) {
dev->error = 1;
if (ret != -ERESTARTSYS)
dev->error = 1;
r = ret;
usb_ep_dequeue(dev->ep_out, req);
goto done;