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Subject[PATCH] backlight, appledisplay: fix incomplete registration failure handling
On error while registering backlight, return it to caller instead of
returning 0.
Mark struct backlight_ops as const.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
---
drivers/usb/misc/appledisplay.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 1eb9e41..ef79ca2 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -179,7 +179,7 @@ static int appledisplay_bl_get_brightness(struct backlight_device *bd)
return pdata->msgdata[1];
}

-static struct backlight_ops appledisplay_bl_data = {
+static const struct backlight_ops appledisplay_bl_data = {
.get_brightness = appledisplay_bl_get_brightness,
.update_status = appledisplay_bl_update_status,
};
@@ -283,6 +283,7 @@ static int appledisplay_probe(struct usb_interface *iface,
&appledisplay_bl_data);
if (IS_ERR(pdata->bd)) {
dev_err(&iface->dev, "Backlight registration failed\n");
+ retval = PTR_ERR(pdata->bd);
goto error;
}

--
1.6.4.4
--
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