From 90a87ea480ce50e7a1553568395c024294db1808 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 13 Oct 2007 17:47:48 +0200 Subject: [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(-) diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index f759a5397865..b43457e34311 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -392,6 +392,7 @@ kauai_lookup_timing(struct kauai_timing* table, int cycle_time) for (i=0; table[i].cycle_time; i++) if (cycle_time > table[i+1].cycle_time) return table[i].timing_reg; + BUG(); return 0; } @@ -637,8 +638,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) 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; } @@ -646,8 +645,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) 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; } @@ -746,8 +743,6 @@ set_timings_udma_ata6(u32 *pio_timings, u32 *ultra_timings, u8 speed) 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; @@ -766,8 +761,6 @@ set_timings_udma_shasta(u32 *pio_timings, u32 *ultra_timings, u8 speed) 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; @@ -839,8 +832,6 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2, 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; } @@ -848,8 +839,6 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2, 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; } -- 2.20.1