[PATCH] ide-pmac: don't check kauai_lookup_timing() return value kauai_lookup_timing() should always return non-zero return value: * BUG() in kauai_lookup_timing() if the timing info cannot be found. * Remove code checking for zero return value from all callers. Acked-by: Benjamin Herrenschmidt Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ppc/pmac.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) Index: b/drivers/ide/ppc/pmac.c =================================================================== --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -391,6 +391,7 @@ kauai_lookup_timing(struct kauai_timing* for (i=0; table[i].cycle_time; i++) if (cycle_time > table[i+1].cycle_time) return table[i].timing_reg; + BUG(); return 0; } @@ -636,8 +637,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive case controller_sh_ata6: { /* 133Mhz cell */ u32 tr = kauai_lookup_timing(shasta_pio_timings, cycle_time); - if (tr == 0) - return; *timings = ((*timings) & ~TR_133_PIOREG_PIO_MASK) | tr; break; } @@ -645,8 +644,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive case controller_k2_ata6: { /* 100Mhz cell */ u32 tr = kauai_lookup_timing(kauai_pio_timings, cycle_time); - if (tr == 0) - return; *timings = ((*timings) & ~TR_100_PIOREG_PIO_MASK) | tr; break; } @@ -745,8 +742,6 @@ set_timings_udma_ata6(u32 *pio_timings, if (speed > XFER_UDMA_5 || t == NULL) return 1; tr = kauai_lookup_timing(kauai_udma_timings, (int)t->udma); - if (tr == 0) - return 1; *ultra_timings = ((*ultra_timings) & ~TR_100_UDMAREG_UDMA_MASK) | tr; *ultra_timings = (*ultra_timings) | TR_100_UDMAREG_UDMA_EN; @@ -765,8 +760,6 @@ set_timings_udma_shasta(u32 *pio_timings if (speed > XFER_UDMA_6 || t == NULL) return 1; tr = kauai_lookup_timing(shasta_udma133_timings, (int)t->udma); - if (tr == 0) - return 1; *ultra_timings = ((*ultra_timings) & ~TR_133_UDMAREG_UDMA_MASK) | tr; *ultra_timings = (*ultra_timings) | TR_133_UDMAREG_UDMA_EN; @@ -838,8 +831,6 @@ set_timings_mdma(ide_drive_t *drive, int case controller_sh_ata6: { /* 133Mhz cell */ u32 tr = kauai_lookup_timing(shasta_mdma_timings, cycleTime); - if (tr == 0) - return 1; *timings = ((*timings) & ~TR_133_PIOREG_MDMA_MASK) | tr; *timings2 = (*timings2) & ~TR_133_UDMAREG_UDMA_EN; } @@ -847,8 +838,6 @@ set_timings_mdma(ide_drive_t *drive, int case controller_k2_ata6: { /* 100Mhz cell */ u32 tr = kauai_lookup_timing(kauai_mdma_timings, cycleTime); - if (tr == 0) - return 1; *timings = ((*timings) & ~TR_100_PIOREG_MDMA_MASK) | tr; *timings2 = (*timings2) & ~TR_100_UDMAREG_UDMA_EN; }