diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-07-10 00:16:28 -0300 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-07-15 11:38:42 +0100 |
| commit | 9c4a39afaa2ef8f96b7bda1ffb5deef0e98ad189 (patch) | |
| tree | ab349d7dfec34a3532568350a3b96a0f222cbf42 /drivers/spi/spi-mxs.c | |
| parent | e11933f626c0a1333ec118d35a0c6c90d576b707 (diff) | |
| download | talos-op-linux-9c4a39afaa2ef8f96b7bda1ffb5deef0e98ad189.tar.gz talos-op-linux-9c4a39afaa2ef8f96b7bda1ffb5deef0e98ad189.zip | |
spi: spi-mxs: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.
While at it, rename 'out_free_dma' to 'out_disable_clk' so that it can properly
describe its purpose.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-mxs.c')
| -rw-r--r-- | drivers/spi/spi-mxs.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 92254a1672e7..ecc59444875c 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -563,7 +563,10 @@ static int mxs_spi_probe(struct platform_device *pdev) goto out_master_free; } - clk_prepare_enable(ssp->clk); + ret = clk_prepare_enable(ssp->clk); + if (ret) + goto out_dma_release; + clk_set_rate(ssp->clk, clk_freq); ssp->clk_rate = clk_get_rate(ssp->clk) / 1000; @@ -574,13 +577,14 @@ static int mxs_spi_probe(struct platform_device *pdev) ret = spi_register_master(master); if (ret) { dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret); - goto out_free_dma; + goto out_disable_clk; } return 0; -out_free_dma: +out_disable_clk: clk_disable_unprepare(ssp->clk); +out_dma_release: dma_release_channel(ssp->dmach); out_master_free: spi_master_put(master); |
