| Message ID | 477d9b0992f4b16454ad1780eb4477433c075226.1496141406.git.arvind.yadav.cs@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, May 30, 2017 at 04:22:57PM +0530, Arvind Yadav wrote: > clk_prepare_enable() can fail here and we must check its return value. > > Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Applied, thank you. > --- > drivers/input/touchscreen/s3c2410_ts.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c > index 41d58e8..3b3db8c 100644 > --- a/drivers/input/touchscreen/s3c2410_ts.c > +++ b/drivers/input/touchscreen/s3c2410_ts.c > @@ -264,7 +264,11 @@ static int s3c2410ts_probe(struct platform_device *pdev) > return -ENOENT; > } > > - clk_prepare_enable(ts.clock); > + ret = clk_prepare_enable(ts.clock); > + if (ret) { > + dev_err(dev, "Failed! to enabled clocks\n"); > + goto err_clk_get; > + } > dev_dbg(dev, "got and enabled clocks\n"); > > ts.irq_tc = ret = platform_get_irq(pdev, 0); > @@ -353,7 +357,9 @@ static int s3c2410ts_probe(struct platform_device *pdev) > err_iomap: > iounmap(ts.io); > err_clk: > + clk_disable_unprepare(ts.clock); > del_timer_sync(&touch_timer); > + err_clk_get: > clk_put(ts.clock); > return ret; > } > -- > 1.9.1 >
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c index 41d58e8..3b3db8c 100644 --- a/drivers/input/touchscreen/s3c2410_ts.c +++ b/drivers/input/touchscreen/s3c2410_ts.c @@ -264,7 +264,11 @@ static int s3c2410ts_probe(struct platform_device *pdev) return -ENOENT; } - clk_prepare_enable(ts.clock); + ret = clk_prepare_enable(ts.clock); + if (ret) { + dev_err(dev, "Failed! to enabled clocks\n"); + goto err_clk_get; + } dev_dbg(dev, "got and enabled clocks\n"); ts.irq_tc = ret = platform_get_irq(pdev, 0); @@ -353,7 +357,9 @@ static int s3c2410ts_probe(struct platform_device *pdev) err_iomap: iounmap(ts.io); err_clk: + clk_disable_unprepare(ts.clock); del_timer_sync(&touch_timer); + err_clk_get: clk_put(ts.clock); return ret; }
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> --- drivers/input/touchscreen/s3c2410_ts.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)