staging/bcm: move IOCTL_BCM_GPIO_MODE_REQUEST case out to its own function.
bcm_char_ioctl is one of the longest non-generated functions in the kernel, at 1906 lines. Splitting it up into multiple functions should simplify this a lot. Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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