pcmcia: do not load the pd6729 driver if io_base is NULL
pcmcia: do not load the pd6729 driver if io_base is NULL

The CL-PD6729 chip in some docking station is not initialized properly
under Linux. In that case, do not load the pd6729 driver.

[Dominik Brodowski <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@dominikbrodowski.net>: spelling fixes, check for NULL not 0]
Signed-off-by: Komuro <67e08e12dd60545d8b29ebd61fd5858dad508676@nifty.com>
Signed-off-by: Dominik Brodowski <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@dominikbrodowski.net>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs