This saves a few unwind code and return proper error if devm_kcalloc fails.
Signed-off-by: Axel Lin <[email protected]> --- drivers/spi/spi-omap2-mcspi.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 2941c5b..4dc77df 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -1379,12 +1379,13 @@ 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; @@ -1426,7 +1427,7 @@ 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); @@ -1444,8 +1445,6 @@ 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; @@ -1453,19 +1452,12 @@ 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; } -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
