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authorAxel Lin <axel.lin@ingics.com>2014-03-29 21:37:44 +0800
committerMark Brown <broonie@linaro.org>2014-04-03 11:21:15 +0100
commita6f936db640f56066d0728bc135c1acd4cd9e56e (patch)
tree228b3eed2b5f69e82f5d4c7467d640a249b877e2 /drivers/spi
parent455c6fdbd219161bd09b1165f11699d6d73de11c (diff)
downloadop-kernel-dev-a6f936db640f56066d0728bc135c1acd4cd9e56e.zip
op-kernel-dev-a6f936db640f56066d0728bc135c1acd4cd9e56e.tar.gz
spi: omap2-mcspi: Convert to use devm_kcalloc
This saves a few unwind code and return proper error if devm_kcalloc fails. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-omap2-mcspi.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index a72127f..f664212 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1356,12 +1356,13 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&mcspi->ctx.cs);
- mcspi->dma_channels = kcalloc(master->num_chipselect,
- sizeof(struct omap2_mcspi_dma),
- GFP_KERNEL);
-
- if (mcspi->dma_channels == NULL)
+ mcspi->dma_channels = devm_kcalloc(&pdev->dev, master->num_chipselect,
+ sizeof(struct omap2_mcspi_dma),
+ GFP_KERNEL);
+ if (mcspi->dma_channels == NULL) {
+ status = -ENOMEM;
goto free_master;
+ }
for (i = 0; i < master->num_chipselect; i++) {
char *dma_rx_ch_name = mcspi->dma_channels[i].dma_rx_ch_name;
@@ -1403,7 +1404,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
}
if (status < 0)
- goto dma_chnl_free;
+ goto free_master;
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, SPI_AUTOSUSPEND_TIMEOUT);
@@ -1421,8 +1422,6 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
disable_pm:
pm_runtime_disable(&pdev->dev);
-dma_chnl_free:
- kfree(mcspi->dma_channels);
free_master:
spi_master_put(master);
return status;
@@ -1430,19 +1429,12 @@ free_master:
static int omap2_mcspi_remove(struct platform_device *pdev)
{
- struct spi_master *master;
- struct omap2_mcspi *mcspi;
- struct omap2_mcspi_dma *dma_channels;
-
- master = platform_get_drvdata(pdev);
- mcspi = spi_master_get_devdata(master);
- dma_channels = mcspi->dma_channels;
+ struct spi_master *master = platform_get_drvdata(pdev);
+ struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
pm_runtime_put_sync(mcspi->dev);
pm_runtime_disable(&pdev->dev);
- kfree(dma_channels);
-
return 0;
}
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