Commit 62563e84 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Greg Kroah-Hartman

coresight: etb10: Handle errors enabling the device

Prepare the etb10 driver to return errors in enabling
the device.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e2a1551a
......@@ -106,7 +106,7 @@ static unsigned int etb_get_buffer_depth(struct etb_drvdata *drvdata)
return depth;
}
static void etb_enable_hw(struct etb_drvdata *drvdata)
static void __etb_enable_hw(struct etb_drvdata *drvdata)
{
int i;
u32 depth;
......@@ -134,6 +134,12 @@ static void etb_enable_hw(struct etb_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
static int etb_enable_hw(struct etb_drvdata *drvdata)
{
__etb_enable_hw(drvdata);
return 0;
}
static int etb_enable_sysfs(struct coresight_device *csdev)
{
int ret = 0;
......@@ -152,8 +158,9 @@ static int etb_enable_sysfs(struct coresight_device *csdev)
if (drvdata->mode == CS_MODE_SYSFS)
goto out;
ret = etb_enable_hw(drvdata);
if (!ret)
drvdata->mode = CS_MODE_SYSFS;
etb_enable_hw(drvdata);
out:
spin_unlock_irqrestore(&drvdata->spinlock, flags);
......@@ -183,8 +190,9 @@ static int etb_enable_perf(struct coresight_device *csdev, void *data)
if (ret)
goto out;
ret = etb_enable_hw(drvdata);
if (!ret)
drvdata->mode = CS_MODE_PERF;
etb_enable_hw(drvdata);
out:
spin_unlock_irqrestore(&drvdata->spinlock, flags);
......
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