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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-12-16 17:02:10 +0300 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-12-16 09:51:58 -0700 |
| commit | 8a0a1af30cbf56b41220a02e34835022c4d72f41 (patch) | |
| tree | a9191bb4d68bfa5639415ff5f62f96de3880ee90 /drivers/spi/spi-tegra20-slink.c | |
| parent | f1d6ff7939b4444079170adc2bba1f551e7f65ea (diff) | |
| download | lwn-8a0a1af30cbf56b41220a02e34835022c4d72f41.tar.gz lwn-8a0a1af30cbf56b41220a02e34835022c4d72f41.zip | |
spi: tegra: checking for ERR_PTR instead of NULL
dma_request_slave_channel() returns NULL on error and not ERR_PTRs.
I've fixed this by using dma_request_slave_channel_reason() which does
return ERR_PTRs.
Fixes: a915d150f68d ('spi: tegra: convert to standard DMA DT bindings')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'drivers/spi/spi-tegra20-slink.c')
| -rw-r--r-- | drivers/spi/spi-tegra20-slink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index dd6f26c05947..a728bb82090f 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -630,8 +630,8 @@ static int tegra_slink_init_dma_param(struct tegra_slink_data *tspi, int ret; struct dma_slave_config dma_sconfig; - dma_chan = dma_request_slave_channel(tspi->dev, - dma_to_memory ? "rx" : "tx"); + dma_chan = dma_request_slave_channel_reason(tspi->dev, + dma_to_memory ? "rx" : "tx"); if (IS_ERR(dma_chan)) { ret = PTR_ERR(dma_chan); if (ret != -EPROBE_DEFER) |