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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2010-10-20 08:37:19 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-10-22 11:08:27 -0700 |
| commit | 8267f16e8b67ea272f37f7072933dc0d3839693d (patch) | |
| tree | 672a25b5bb2db8c1a440d0221d1069231071f6aa /drivers/dma | |
| parent | 42e55736f7efd7658f8826a5f441c3ccb962db74 (diff) | |
| download | linux-8267f16e8b67ea272f37f7072933dc0d3839693d.tar.gz linux-8267f16e8b67ea272f37f7072933dc0d3839693d.tar.bz2 linux-8267f16e8b67ea272f37f7072933dc0d3839693d.zip | |
dma: imx-dma: fix signedness bug
mxdmac->channel was unsigned, so check (imxdmac->channel < 0) for
failed imx_dma_request_by_prio() made no sence. Explicitly check
signed values.
Also, fix uninitialzed use of ret.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/imx-dma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 346be6218058..f629e4961af5 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -335,8 +335,10 @@ static int __init imxdma_probe(struct platform_device *pdev) imxdmac->imxdma_channel = imx_dma_request_by_prio("dmaengine", DMA_PRIO_MEDIUM); - if (imxdmac->channel < 0) + if ((int)imxdmac->channel < 0) { + ret = -ENODEV; goto err_init; + } imx_dma_setup_handlers(imxdmac->imxdma_channel, imxdma_irq_handler, imxdma_err_handler, imxdmac); |