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authorTomi Valkeinen <tomi.valkeinen@ti.com>2013-04-26 14:33:05 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2013-05-02 12:24:20 +0300
commitbcb734d2a1ef1b40fd7600b0f4f9225484572c67 (patch)
treeb145e5036ba50cf4b531d3d7d917074b46c47e8d /drivers/video
parentb5a99c2626a4ace340a535775342e2a75fbe60e7 (diff)
downloadlinux-bcb734d2a1ef1b40fd7600b0f4f9225484572c67.tar.bz2
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/omap2/dss/dpi.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 202478795c1b..757b57f7275a 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -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;
}