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authorIngo Molnar <mingo@kernel.org>2018-03-19 20:37:35 +0100
committerIngo Molnar <mingo@kernel.org>2018-03-19 20:37:35 +0100
commit134933e55789ece9bca973d3502c7b8f7a9dae86 (patch)
treeb1694310855e43acb5fceb8b2d55ec8cd713ccad /drivers/usb/core/message.c
parent24868367cdcac447232ebcb2aa06e1bf91291586 (diff)
parentc698ca5278934c0ae32297a8725ced2e27585d7f (diff)
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Merge tag 'v4.16-rc6' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core/message.c')
-rw-r--r--drivers/usb/core/message.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index c64cf6c4a83d..0c11d40a12bc 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -151,6 +151,10 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
ret = usb_internal_control_msg(dev, pipe, dr, data, size, timeout);
+ /* Linger a bit, prior to the next control message. */
+ if (dev->quirks & USB_QUIRK_DELAY_CTRL_MSG)
+ msleep(200);
+
kfree(dr);
return ret;