This is a note to let you know that I've just added the patch titled
iio: adc: mxs-lradc: Disable the clock on probe failure
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 75d7ed3b9e7cb79a3b0e1f417fb674d54b4fc668 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
Date: Sat, 4 Oct 2014 08:50:21 -0300
Subject: iio: adc: mxs-lradc: Disable the clock on probe failure
We should disable lradc->clk in the case of errors in the probe function.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
Reviewed-by: Marek Vasut <marex@xxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Cc: <Stable@xxxxxxxxxxxxxxx>
---
drivers/staging/iio/adc/mxs-lradc.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 468327f4a753..d3436114a6f4 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1565,14 +1565,16 @@ static int mxs_lradc_probe(struct platform_device *pdev)
/* Grab all IRQ sources */
for (i = 0; i < of_cfg->irq_count; i++) {
lradc->irq[i] = platform_get_irq(pdev, i);
- if (lradc->irq[i] < 0)
- return lradc->irq[i];
+ if (lradc->irq[i] < 0) {
+ ret = lradc->irq[i];
+ goto err_clk;
+ }
ret = devm_request_irq(dev, lradc->irq[i],
mxs_lradc_handle_irq, 0,
of_cfg->irq_name[i], iio);
if (ret)
- return ret;
+ goto err_clk;
}
lradc->vref_mv = of_cfg->vref_mv;
@@ -1594,7 +1596,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
&mxs_lradc_trigger_handler,
&mxs_lradc_buffer_ops);
if (ret)
- return ret;
+ goto err_clk;
ret = mxs_lradc_trigger_init(iio);
if (ret)
@@ -1649,6 +1651,8 @@ err_dev:
mxs_lradc_trigger_remove(iio);
err_trig:
iio_triggered_buffer_cleanup(iio);
+err_clk:
+ clk_disable_unprepare(lradc->clk);
return ret;
}
--
2.1.2
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