diff options
| author |   Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2013-05-28 00:58:19 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-06-05 22:48:52 -0700 |
| commit | 64b8dd299a1344626bbcfcbd62f19f1542349ad8 (patch) | |
| tree | 773cf912d59b5520b22a52cdcc3c79d567370ff5 /drivers/input/touchscreen/atmel_tsadcc.c | |
| parent | Input: add TI-Nspire keypad support (diff) | |
| download | linux-dev-64b8dd299a1344626bbcfcbd62f19f1542349ad8.tar.xz linux-dev-64b8dd299a1344626bbcfcbd62f19f1542349ad8.zip | |
Input: atmel_tsadcc - fix error handing with missing platform data
If pdata is NULL, atmel_tsadcc_probe() will release all the resources
and return 0, but we need a error code is returned in this case.
Fix to return -EINVAL and move the check for pdata to the begin
of this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen/atmel_tsadcc.c')
| -rw-r--r-- | drivers/input/touchscreen/atmel_tsadcc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c index 75a0693a3f91..bddabc595077 100644 --- a/drivers/input/touchscreen/atmel_tsadcc.c +++ b/drivers/input/touchscreen/atmel_tsadcc.c @@ -183,10 +183,13 @@ static int atmel_tsadcc_probe(struct platform_device *pdev) struct input_dev *input_dev; struct resource *res; struct at91_tsadcc_data *pdata = pdev->dev.platform_data; - int err = 0; + int err; unsigned int prsc; unsigned int reg; + if (!pdata) + return -EINVAL; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "no mmio resource defined.\n"); @@ -265,9 +268,6 @@ static int atmel_tsadcc_probe(struct platform_device *pdev) prsc = clk_get_rate(ts_dev->clk); dev_info(&pdev->dev, "Master clock is set at: %d Hz\n", prsc); - if (!pdata) - goto err_fail; - if (!pdata->adc_clock) pdata->adc_clock = ADC_DEFAULT_CLOCK; |