[PATCH v3 0/7] USB: don't recover device if suspend fails in system sleep

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

This patch adds comments on interface driver suspend callback
to emphasize that the failure return value is ignored by
USB core in system sleep context, so do not try to recover
device for this case, otherwise the recovery things may confuse
resume().

Also fixes USB HID and several usbnet drivers which may recover
device in suspend failure path of system sleep.

v3:
	- only 2/7 changed, don't change code but add comments to
	restrict subdriver->suspend(), suggested by Johan Hovold.

v2:
        - improve comments on suspend callback as suggested by Alan
        - update kerneldoc for usb_suspend_both as suggested by Alan
        - remove previous check of PMSG_IS_AUTO(message) in cdc_mbim/
        qmi_wwan and add comments on suspend failure case, since Bjørn
        doesn't like the check.
        - add comments on smsc95xx/smsc75xx
v1:
        - fix compile failure
        - add comments about handling suspend failure in resume()

 drivers/hid/usbhid/hid-core.c   |   14 +++++---------
 drivers/net/usb/cdc_mbim.c      |    5 +++++
 drivers/net/usb/qmi_wwan.c      |    5 +++++
 drivers/net/usb/smsc75xx.c      |    6 +++++-
 drivers/net/usb/smsc95xx.c      |    6 +++++-
 drivers/usb/core/driver.c       |   11 ++++++++---
 drivers/usb/serial/usb-serial.c |    5 +++++
 include/linux/usb.h             |    7 ++++++-
 8 files changed, 44 insertions(+), 15 deletions(-)


Thanks
--
Ming Lei

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux