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video: xilinxfb: Simplify error path 

devm_iounmap is called automatically that's why remove it from the code
dev_set_drvdata(dev, NULL) is called by generic code
after device_release or on probe failure.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Michal Simek 2013-10-10 08:30:22 +02:00 committed by Tomi Valkeinen
parent 5c128df747
commit 718b90ac4c
1 changed files with 6 additions and 18 deletions
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24
drivers/video/xilinxfb.c
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@ -260,10 +260,9 @@ static int xilinxfb_assign(struct platform_device *pdev,
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
drvdata->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(drvdata->regs)) {
rc = PTR_ERR(drvdata->regs);
goto err_region;
}
if (IS_ERR(drvdata->regs))
return PTR_ERR(drvdata->regs);
drvdata->regs_phys = res->start;
}
@ -279,11 +278,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
if (!drvdata->fb_virt) {
dev_err(dev, "Could not allocate frame buffer memory\n");
rc = -ENOMEM;
if (drvdata->flags & BUS_ACCESS_FLAG)
goto err_fbmem;
else
goto err_region;
return -ENOMEM;
}
/* Clear (turn to black) the framebuffer */
@ -363,11 +358,6 @@ err_cmap:
/* Turn off the display */
xilinx_fb_out32(drvdata, REG_CTRL, 0);
err_fbmem:
if (drvdata->flags & BUS_ACCESS_FLAG)
devm_iounmap(dev, drvdata->regs);
err_region:
return rc;
}
@ -392,11 +382,9 @@ static int xilinxfb_release(struct device *dev)
/* Turn off the display */
xilinx_fb_out32(drvdata, REG_CTRL, 0);
/* Release the resources, as allocated based on interface */
if (drvdata->flags & BUS_ACCESS_FLAG)
devm_iounmap(dev, drvdata->regs);
#ifdef CONFIG_PPC_DCR
else
/* Release the resources, as allocated based on interface */
if (!(drvdata->flags & BUS_ACCESS_FLAG))
dcr_unmap(drvdata->dcr_host, drvdata->dcr_len);
#endif