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OpenCloudOS-Kernel
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i2c: omap: simplify IRQ exit path 

instead of having multiple return points, use
a goto statement to make that clearer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Felipe Balbi 2012-09-12 16:28:09 +05:30 committed by Wolfram Sang
parent 6a85ced2cf
commit 4a7ec4eda5
1 changed files with 8 additions and 12 deletions
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20
drivers/i2c/busses/i2c-omap.c
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@ -853,24 +853,21 @@ omap_i2c_isr(int this_irq, void *dev_id)
dev_dbg(dev->dev, "IRQ (ISR = 0x%04x)\n", stat);
if (count++ == 100) {
dev_warn(dev->dev, "Too much work in one IRQ\n");
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
complete:
if (stat & OMAP_I2C_STAT_NACK) {
err |= OMAP_I2C_STAT_NACK;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_NACK);
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
if (stat & OMAP_I2C_STAT_AL) {
dev_err(dev->dev, "Arbitration lost\n");
err |= OMAP_I2C_STAT_AL;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_AL);
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
/*
@ -883,8 +880,7 @@ complete:
OMAP_I2C_STAT_XRDY |
OMAP_I2C_STAT_XDR |
OMAP_I2C_STAT_ARDY));
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
if (stat & OMAP_I2C_STAT_RDR) {
@ -949,19 +945,19 @@ complete:
dev_err(dev->dev, "Receive overrun\n");
err |= OMAP_I2C_STAT_ROVR;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_ROVR);
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
if (stat & OMAP_I2C_STAT_XUDF) {
dev_err(dev->dev, "Transmit underflow\n");
err |= OMAP_I2C_STAT_XUDF;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_XUDF);
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
goto out;
}
} while (stat);
out:
omap_i2c_complete_cmd(dev, err);
return IRQ_HANDLED;
}