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    Subject[PATCH 20/58] move hp680-bl's probe function to .devinit.text
    Date
    A pointer to hp680bl_probe is passed to the core via
    platform_driver_register and so the function must not disappear when the
    .init sections are discarded. Otherwise (if also having HOTPLUG=y)
    unbinding and binding a device to the driver via sysfs will result in an
    oops as does a device being registered late.

    An alternative to this patch is using platform_driver_probe instead of
    platform_driver_register plus removing the pointer to the probe function
    from the struct platform_driver.

    Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    Cc: Akinobu Mita <akinobu.mita@gmail.com>
    Cc: Richard Purdie <rpurdie@linux.intel.com>
    Cc: Paul Mundt <lethal@linux-sh.org>
    Cc: Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andriy Skulysh <askulysh@gmail.com>
    Cc: Antonino Daplas <adaplas@pol.net>
    ---
    drivers/video/backlight/hp680_bl.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
    index 5be55a2..7fb4eef 100644
    --- a/drivers/video/backlight/hp680_bl.c
    +++ b/drivers/video/backlight/hp680_bl.c
    @@ -103,7 +103,7 @@ static struct backlight_ops hp680bl_ops = {
    .update_status = hp680bl_set_intensity,
    };

    -static int __init hp680bl_probe(struct platform_device *pdev)
    +static int __devinit hp680bl_probe(struct platform_device *pdev)
    {
    struct backlight_device *bd;

    --
    1.6.2
    --
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