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OMAPDSS: DPI: Add error handling for dpi_probe_pdata 

Add proper error handling for dpi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the DPI driver to be
probed again later if a resource was missing.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-04-26 14:33:05 +03:00
parent b5a99c2626
commit bcb734d2a1
1 changed files with 15 additions and 7 deletions
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22
drivers/video/omap2/dss/dpi.c
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@ -635,7 +635,7 @@ static struct omap_dss_device *dpi_find_dssdev(struct platform_device *pdev)
return def_dssdev;
}
static void dpi_probe_pdata(struct platform_device *dpidev)
static int dpi_probe_pdata(struct platform_device *dpidev)
{
struct omap_dss_device *plat_dssdev;
struct omap_dss_device *dssdev;
@ -644,11 +644,11 @@ static void dpi_probe_pdata(struct platform_device *dpidev)
plat_dssdev = dpi_find_dssdev(dpidev);
if (!plat_dssdev)
return;
return 0;
dssdev = dss_alloc_and_init_device(&dpidev->dev);
if (!dssdev)
return;
return -ENOMEM;
dss_copy_device_pdata(dssdev, plat_dssdev);
@ -656,7 +656,7 @@ static void dpi_probe_pdata(struct platform_device *dpidev)
if (r) {
DSSERR("device %s init failed: %d\n", dssdev->name, r);
dss_put_device(dssdev);
return;
return r;
}
r = omapdss_output_set_device(&dpi.output, dssdev);
@ -664,7 +664,7 @@ static void dpi_probe_pdata(struct platform_device *dpidev)
DSSERR("failed to connect output to new device: %s\n",
dssdev->name);
dss_put_device(dssdev);
return;
return r;
}
r = dss_add_device(dssdev);
@ -672,8 +672,10 @@ static void dpi_probe_pdata(struct platform_device *dpidev)
DSSERR("device %s register failed: %d\n", dssdev->name, r);
omapdss_output_unset_device(&dpi.output);
dss_put_device(dssdev);
return;
return r;
}
return 0;
}
static void dpi_init_output(struct platform_device *pdev)
@ -698,11 +700,17 @@ static void __exit dpi_uninit_output(struct platform_device *pdev)
static int omap_dpi_probe(struct platform_device *pdev)
{
int r;
mutex_init(&dpi.lock);
dpi_init_output(pdev);
dpi_probe_pdata(pdev);
r = dpi_probe_pdata(pdev);
if (r) {
dpi_uninit_output(pdev);
return r;
}
return 0;
}