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| author | Alan Stern <stern@rowland.harvard.edu> | 2016-09-26 15:45:41 -0700 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-10-17 15:43:04 +0200 |
| commit | 796aa46adf1d90eab36ae06a42e6d3f10b28a75c (patch) | |
| tree | 911f0f6a073f4812edbe3e3208f52b329e3d690d /drivers/memstick/host | |
| parent | 4f48aa7a11bfed9502a7c85a5b68cd40ea827f73 (diff) | |
| download | op-kernel-dev-796aa46adf1d90eab36ae06a42e6d3f10b28a75c.zip op-kernel-dev-796aa46adf1d90eab36ae06a42e6d3f10b28a75c.tar.gz | |
memstick: rtsx_usb_ms: Runtime resume the device when polling for cards
Accesses to the rtsx usb device, which is the parent of the rtsx memstick
device, must not be done unless it's runtime resumed.
Therefore when the rtsx_usb_ms driver polls for inserted memstick cards,
let's add pm_runtime_get|put*() to make sure accesses is done when the
rtsx usb device is runtime resumed.
Reported-by: Ritesh Raj Sarraf <rrs@researchut.com>
Tested-by: Ritesh Raj Sarraf <rrs@researchut.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/memstick/host')
| -rw-r--r-- | drivers/memstick/host/rtsx_usb_ms.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/memstick/host/rtsx_usb_ms.c b/drivers/memstick/host/rtsx_usb_ms.c index d34bc35..1b99489 100644 --- a/drivers/memstick/host/rtsx_usb_ms.c +++ b/drivers/memstick/host/rtsx_usb_ms.c @@ -681,6 +681,7 @@ static int rtsx_usb_detect_ms_card(void *__host) int err; for (;;) { + pm_runtime_get_sync(ms_dev(host)); mutex_lock(&ucr->dev_mutex); /* Check pending MS card changes */ @@ -703,6 +704,7 @@ static int rtsx_usb_detect_ms_card(void *__host) } poll_again: + pm_runtime_put(ms_dev(host)); if (host->eject) break; |
