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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-30 05:12:05 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-30 05:12:05 -0700
commit03420865e10d05d60d592fe8649e4853dc69ca5a (patch)
tree105d173e5267931d794e429ee7c64f83e526a521 /drivers/usb/usbip/stub_main.c
parenta2e63709b53312002009c564460af34520c62f98 (diff)
parent6da6c0db5316275015e8cc2959f12a17584aeb64 (diff)
downloadblackbird-op-linux-03420865e10d05d60d592fe8649e4853dc69ca5a.tar.gz
blackbird-op-linux-03420865e10d05d60d592fe8649e4853dc69ca5a.zip
Merge 4.17-rc3 into staging-next
We want the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/usbip/stub_main.c')
-rw-r--r--drivers/usb/usbip/stub_main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index c31c8402a0c5..d41d0cdeec0f 100644
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -186,7 +186,12 @@ static ssize_t rebind_store(struct device_driver *dev, const char *buf,
if (!bid)
return -ENODEV;
+ /* device_attach() callers should hold parent lock for USB */
+ if (bid->udev->dev.parent)
+ device_lock(bid->udev->dev.parent);
ret = device_attach(&bid->udev->dev);
+ if (bid->udev->dev.parent)
+ device_unlock(bid->udev->dev.parent);
if (ret < 0) {
dev_err(&bid->udev->dev, "rebind failed\n");
return ret;
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