pdma_base = 0; 
pdma_base = NULL; 
static __inline__ void sun_fd_disable_dma(void){	doing_pdma = 0;	if (pdma_base) {		mmu_unlockarea(pdma_base, pdma_areasize);		pdma_base = 0;	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/3c51f196b658fa1920c84b0752a55ed251d22d52/floppy.h/buggy/include/asm-sparc/floppy.h