diff options
| author |   Tomas Winkler <tomas.winkler@intel.com> | 2013-06-23 22:49:04 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-24 16:33:28 -0700 |
| commit | 9049f7932109f3fe189ffa8028f2e23f06a9bd0b (patch) | |
| tree | 1f5dc15a64dc0d478148abe85909ae9476db20f8 /drivers/misc | |
| parent | mei: check if the hardware reset succeeded (diff) | |
| download | linux-dev-9049f7932109f3fe189ffa8028f2e23f06a9bd0b.tar.xz linux-dev-9049f7932109f3fe189ffa8028f2e23f06a9bd0b.zip | |
mei: check whether hw start has succeeded
hw start may fail therefore the reset flow has
to check for the return value
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/mei/init.c | 7 | ||||
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 4 |
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 15253886f37e..6fc573cef178 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -181,7 +181,12 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) return; } - mei_hw_start(dev); + ret = mei_hw_start(dev); + if (ret) { + dev_err(&dev->pdev->dev, "hw_start failed disabling the device\n"); + dev->dev_state = MEI_DEV_DISABLED; + return; + } dev_dbg(&dev->pdev->dev, "link is established start sending messages.\n"); /* link is established * start sending messages. */ diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 1aa499782abe..7b918b2fb894 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -544,9 +544,9 @@ static inline int mei_hw_reset(struct mei_device *dev, bool enable) return dev->ops->hw_reset(dev, enable); } -static inline void mei_hw_start(struct mei_device *dev) +static inline int mei_hw_start(struct mei_device *dev) { - dev->ops->hw_start(dev); + return dev->ops->hw_start(dev); } static inline void mei_clear_interrupts(struct mei_device *dev) |