From 727cbe14b25b492bc9b96ad9d1f5f881d833028e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 2 Dec 2013 12:57:33 +0800 Subject: [PATCH] spi: bfin_spi: Remove unnecessary test for bus and pins[bus] For invalid bus number, current code returns NULL in the default case of switch-case statements. In additional, pins[bus] is always not NULL because it is the address of specific row of the two-dimensional array. Thus this patch removes these unnecessary test. Signed-off-by: Axel Lin Acked-by: Scott Jiang Signed-off-by: Sonic Zhang --- drivers/spi/bfin_spi.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/spi/bfin_spi.c b/drivers/spi/bfin_spi.c index bb88f3008a..aa89d89a32 100644 --- a/drivers/spi/bfin_spi.c +++ b/drivers/spi/bfin_spi.c @@ -162,21 +162,22 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, if (!spi_cs_is_valid(bus, cs)) return NULL; - if (bus >= ARRAY_SIZE(pins) || pins[bus] == NULL) { - debug("%s: invalid bus %u\n", __func__, bus); - return NULL; - } switch (bus) { #ifdef SPI0_CTL - case 0: mmr_base = SPI0_CTL; break; + case 0: + mmr_base = SPI0_CTL; break; #endif #ifdef SPI1_CTL - case 1: mmr_base = SPI1_CTL; break; + case 1: + mmr_base = SPI1_CTL; break; #endif #ifdef SPI2_CTL - case 2: mmr_base = SPI2_CTL; break; + case 2: + mmr_base = SPI2_CTL; break; #endif - default: return NULL; + default: + debug("%s: invalid bus %u\n", __func__, bus); + return NULL; } bss = spi_alloc_slave(struct bfin_spi_slave, bus, cs); -- 2.39.5