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| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2013-05-16 07:11:32 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-16 20:21:50 +0200 |
| commit | 4a577f5275e948f96ea1a9bbce5d994ec6db618b (patch) | |
| tree | c668f6925c6a00c7d2bc279d0dcd0a99e6784a3b /drivers/spi/spi-coldfire-qspi.c | |
| parent | Linux 3.10-rc1 (diff) | |
| download | linux-4a577f5275e948f96ea1a9bbce5d994ec6db618b.tar.xz linux-4a577f5275e948f96ea1a9bbce5d994ec6db618b.zip | |
spi: coldfire-qspi: fix error return code in mcfqspi_probe()
If pdev->dev.platform_data is not set, mcfqspi_probe() will return 0
and release all the resources, in this case, we should return a error
code instead of 0.
This patch fix to return -ENOENT in this case and move the check for
pdev->dev.platform_data to the begin of this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/spi/spi-coldfire-qspi.c')
| -rw-r--r-- | drivers/spi/spi-coldfire-qspi.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c index 7b5cc9e4e94d..f99943bf3519 100644 --- a/drivers/spi/spi-coldfire-qspi.c +++ b/drivers/spi/spi-coldfire-qspi.c @@ -408,6 +408,12 @@ static int mcfqspi_probe(struct platform_device *pdev) struct mcfqspi_platform_data *pdata; int status; + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_dbg(&pdev->dev, "platform data is missing\n"); + return -ENOENT; + } + master = spi_alloc_master(&pdev->dev, sizeof(*mcfqspi)); if (master == NULL) { dev_dbg(&pdev->dev, "spi_alloc_master failed\n"); @@ -458,11 +464,6 @@ static int mcfqspi_probe(struct platform_device *pdev) } clk_enable(mcfqspi->clk); - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_dbg(&pdev->dev, "platform data is missing\n"); - goto fail4; - } master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; |