diff options
| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2013-05-31 03:50:07 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-06-04 11:12:46 +0200 |
| commit | 8581bbcd30afa9d2fa12ad1605c809b7ada495ea (patch) | |
| tree | 38a36942784089ac28909eba0a4e03048545565a /drivers/dma/ste_dma40.c | |
| parent | dmaengine: ste_dma40: Fetch disabled channels from DT (diff) | |
| download | linux-8581bbcd30afa9d2fa12ad1605c809b7ada495ea.tar.xz linux-8581bbcd30afa9d2fa12ad1605c809b7ada495ea.zip | |
dmaengine: ste_dma40: fix error return code in d40_probe()
In many of the error handling case, the return value 'ret' not set
and 0 will be return from d40_probe() even if error, but we should
return a negative error code instead in those error handling case.
This patch fixed them, and also removed useless variable 'err'.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/dma/ste_dma40.c')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index ffac8225ff54..842e2ed04659 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -3535,7 +3535,6 @@ static int __init d40_probe(struct platform_device *pdev) { struct stedma40_platform_data *plat_data = pdev->dev.platform_data; struct device_node *np = pdev->dev.of_node; - int err; int ret = -ENOENT; struct d40_base *base = NULL; struct resource *res = NULL; @@ -3647,6 +3646,7 @@ static int __init d40_probe(struct platform_device *pdev) base->lcpa_regulator = regulator_get(base->dev, "lcla_esram"); if (IS_ERR(base->lcpa_regulator)) { d40_err(&pdev->dev, "Failed to get lcpa_regulator\n"); + ret = PTR_ERR(base->lcpa_regulator); base->lcpa_regulator = NULL; goto failure; } @@ -3662,13 +3662,13 @@ static int __init d40_probe(struct platform_device *pdev) } base->initialized = true; - err = d40_dmaengine_init(base, num_reserved_chans); - if (err) + ret = d40_dmaengine_init(base, num_reserved_chans); + if (ret) goto failure; base->dev->dma_parms = &base->dma_parms; - err = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE); - if (err) { + ret = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE); + if (ret) { d40_err(&pdev->dev, "Failed to set dma max seg size\n"); goto failure; } @@ -3676,8 +3676,8 @@ static int __init d40_probe(struct platform_device *pdev) d40_hw_init(base); if (np) { - err = of_dma_controller_register(np, d40_xlate, NULL); - if (err && err != -ENODEV) + ret = of_dma_controller_register(np, d40_xlate, NULL); + if (ret) dev_err(&pdev->dev, "could not register of_dma_controller\n"); } |