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    Subject[PATCH 07/58] move cfag12864bfb's probe function to .devinit.text
    Date
    A pointer to cfag12864bfb_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: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Avuton Olrich <avuton@gmail.com>
    Cc: Antonino Daplas <adaplas@gmail.com>
    ---
    drivers/auxdisplay/cfag12864bfb.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c
    index fe3a865..b0ca5a4 100644
    --- a/drivers/auxdisplay/cfag12864bfb.c
    +++ b/drivers/auxdisplay/cfag12864bfb.c
    @@ -81,7 +81,7 @@ static struct fb_ops cfag12864bfb_ops = {
    .fb_mmap = cfag12864bfb_mmap,
    };

    -static int __init cfag12864bfb_probe(struct platform_device *device)
    +static int __devinit cfag12864bfb_probe(struct platform_device *device)
    {
    int ret = -EINVAL;
    struct fb_info *info = framebuffer_alloc(0, &device->dev);
    --
    1.6.2
    --
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