Staging: ramzswap: Handle case for invalid backing swap
Currently, we crash (issue BUG_ON) if backing swap disk size is zero. This can happen is user specified an extended partition or simply a bad disk as backing swap. A crash is really an unpleasant surprise to user for such trivial problems. Now, we check for this condition and simply fail device initialization if this is the case. Additional cleanups: * use static for all functions * remove extra newline between functions * memset backing_swap_name to NULL on device reset Signed-off-by: NNitin Gupta <ngupta@vflare.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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