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authorTomas Winkler <tomas.winkler@intel.com>2013-07-17 15:13:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-23 19:31:35 -0700
commitdab9bf41b23fe700c4a74133e41eb6a21706031e (patch)
tree652729611132f5cbf25e40e43da9ec08864edde6 /drivers/misc/mei
parent99f22c4ef24cf87b0dae6aabe6b5e620b62961d9 (diff)
downloadop-kernel-dev-dab9bf41b23fe700c4a74133e41eb6a21706031e.zip
op-kernel-dev-dab9bf41b23fe700c4a74133e41eb6a21706031e.tar.gz
mei: me: fix waiting for hw ready
1. MEI_INTEROP_TIMEOUT is in seconds not in jiffies so we use mei_secs_to_jiffies macro While cold boot is fast this is relevant in resume 2. wait_event_interruptible_timeout can return with -ERESTARTSYS so do not override it with -ETIMEDOUT 3.Adjust error message Tested-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei')
-rw-r--r--drivers/misc/mei/hw-me.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index a0e19e6..b22c7e2 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -239,14 +239,18 @@ static int mei_me_hw_ready_wait(struct mei_device *dev)
if (mei_me_hw_is_ready(dev))
return 0;
+ dev->recvd_hw_ready = false;
mutex_unlock(&dev->device_lock);
err = wait_event_interruptible_timeout(dev->wait_hw_ready,
- dev->recvd_hw_ready, MEI_INTEROP_TIMEOUT);
+ dev->recvd_hw_ready,
+ mei_secs_to_jiffies(MEI_INTEROP_TIMEOUT));
mutex_lock(&dev->device_lock);
if (!err && !dev->recvd_hw_ready) {
+ if (!err)
+ err = -ETIMEDOUT;
dev_err(&dev->pdev->dev,
- "wait hw ready failed. status = 0x%x\n", err);
- return -ETIMEDOUT;
+ "wait hw ready failed. status = %d\n", err);
+ return err;
}
dev->recvd_hw_ready = false;
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