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authorTomas Winkler <tomas.winkler@intel.com>2011-06-13 16:39:31 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2011-06-27 14:19:21 -0700
commita534bb6eea72c0d082dd2faab85450e5554ba1c8 (patch)
tree45e650f49f1df01f2f8ff96e37ab83fbb54fc570 /drivers
parentfdf2df0e8ce634c9ee5f740a9303e8518ca78932 (diff)
Staging: mei: fix suspend failure
wait_event_interruptible_timeout return value was wrongly used. The remaining timeout was used as the error code. This fix translated wait_event_interruptible_timeout return value into error code that can be propagated. [10291.674121] pci_pm_suspend(): mei_pci_suspend+0x0/0x8b [mei] returns 2500 It's thinkpad t400 with 00:03.0 Communication controller [0780]: Intel Corporation Mobile 4 Series Chipset MEI Controller [8086:2a44] (rev 07) Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/mei/init.c2
-rw-r--r--drivers/staging/mei/wd.c13
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/staging/mei/init.c b/drivers/staging/mei/init.c
index d1ffa32cd141..685fcf639644 100644
--- a/drivers/staging/mei/init.c
+++ b/drivers/staging/mei/init.c
@@ -189,7 +189,7 @@ int mei_hw_init(struct mei_device *dev)
mutex_lock(&dev->device_lock);
}
- if (!err && !dev->recvd_msg) {
+ if (err <= 0 && !dev->recvd_msg) {
dev->mei_state = MEI_DISABLED;
dev_dbg(&dev->pdev->dev,
"wait_event_interruptible_timeout failed"
diff --git a/drivers/staging/mei/wd.c b/drivers/staging/mei/wd.c
index 2564b038636a..fff53d0b5c6e 100644
--- a/drivers/staging/mei/wd.c
+++ b/drivers/staging/mei/wd.c
@@ -169,10 +169,15 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
ret = wait_event_interruptible_timeout(dev->wait_stop_wd,
dev->wd_stopped, 10 * HZ);
mutex_lock(&dev->device_lock);
- if (!dev->wd_stopped)
- dev_dbg(&dev->pdev->dev, "stop wd failed to complete.\n");
- else
- dev_dbg(&dev->pdev->dev, "stop wd complete.\n");
+ if (dev->wd_stopped) {
+ dev_dbg(&dev->pdev->dev, "stop wd complete ret=%d.\n", ret);
+ ret = 0;
+ } else {
+ if (!ret)
+ ret = -ETIMEDOUT;
+ dev_warn(&dev->pdev->dev,
+ "stop wd failed to complete ret=%d.\n", ret);
+ }
if (preserve)
dev->wd_timeout = wd_timeout;