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bus: bt1-axi: Optimize the return points in the driver 

It's better to have a single return statement where it's applicable
instead of returning from a conditional statement if-clause. Let's
do this in the request registers, clock and IRQ methods.

Link: https://lore.kernel.org/r/20200528145050.5203-5-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Olof Johansson <olof@lixom.net>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: soc@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Serge Semin 2020-05-28 17:50:49 +03:00 committed by Arnd Bergmann
parent b7cb430d5f
commit 7f57416f2a
1 changed files with 6 additions and 12 deletions
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18
drivers/bus/bt1-axi.c
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@ -124,12 +124,10 @@ static int bt1_axi_request_regs(struct bt1_axi *axi)
}
axi->qos_regs = devm_platform_ioremap_resource_byname(pdev, "qos");
if (IS_ERR(axi->qos_regs)) {
if (IS_ERR(axi->qos_regs))
dev_err(dev, "Couldn't map AXI-bus QoS registers\n");
return PTR_ERR(axi->qos_regs);
}
return 0;
return PTR_ERR_OR_ZERO(axi->qos_regs);
}
static int bt1_axi_request_rst(struct bt1_axi *axi)
@ -173,12 +171,10 @@ static int bt1_axi_request_clk(struct bt1_axi *axi)
}
ret = devm_add_action_or_reset(axi->dev, bt1_axi_disable_clk, axi);
if (ret) {
if (ret)
dev_err(axi->dev, "Can't add AXI clock disable action\n");
return ret;
}
return 0;
return ret;
}
static int bt1_axi_request_irq(struct bt1_axi *axi)
@ -192,12 +188,10 @@ static int bt1_axi_request_irq(struct bt1_axi *axi)
ret = devm_request_irq(axi->dev, axi->irq, bt1_axi_isr, IRQF_SHARED,
"bt1-axi", axi);
if (ret) {
if (ret)
dev_err(axi->dev, "Couldn't request AXI EHB IRQ\n");
return ret;
}
return 0;
return ret;
}
static ssize_t count_show(struct device *dev,