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ste_dma40: Delete another unnecessary check in d40_probe()

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A single jump label was used by the d40_probe() function in several cases
for error handling which was a bit inefficient here.

* This implementation detail could be improved by the introduction
  of another jump label.

* Remove an extra check for the variable "base".

* Omit its explicit initialisation at the beginning then.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Markus Elfring 2015-11-16 21:56:07 +01:00 committed by Vinod Koul
parent e0f8c58003
commit a9bae06dd0
1 changed files with 43 additions and 45 deletions
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12
drivers/dma/ste_dma40.c
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@ -3543,7 +3543,7 @@ static int __init d40_probe(struct platform_device *pdev)
struct stedma40_platform_data *plat_data = dev_get_platdata(&pdev->dev);
struct device_node *np = pdev->dev.of_node;
int ret = -ENOENT;
struct d40_base *base = NULL;
struct d40_base *base;
struct resource *res = NULL;
int num_reserved_chans;
u32 val;
@ -3552,17 +3552,17 @@ static int __init d40_probe(struct platform_device *pdev)
if (np) {
if (d40_of_probe(pdev, np)) {
ret = -ENOMEM;
goto failure;
goto report_failure;
}
} else {
d40_err(&pdev->dev, "No pdata or Device Tree provided\n");
goto failure;
goto report_failure;
}
}
base = d40_hw_detect_init(pdev);
if (!base)
goto failure;
goto report_failure;
num_reserved_chans = d40_phy_res_init(base);
@ -3693,7 +3693,6 @@ static int __init d40_probe(struct platform_device *pdev)
return 0;
failure:
if (base) {
kmem_cache_destroy(base->desc_slab);
if (base->virtbase)
iounmap(base->virtbase);
@ -3735,8 +3734,7 @@ failure:
kfree(base->lookup_phy_chans);
kfree(base->phy_res);
kfree(base);
}
report_failure:
d40_err(&pdev->dev, "probe failed\n");
return ret;
}