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spi: bfin_spi6xx: 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 <axel.lin@ingics.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
This commit is contained in:
Axel Lin 2013-12-02 12:57:44 +08:00 committed by Sonic Zhang
parent 727cbe14b2
commit 9bac8f7769
1 changed files with 1 additions and 4 deletions
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5
drivers/spi/bfin_spi6xx.c
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@ -154,10 +154,6 @@ 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_REGBASE
case 0:
@ -175,6 +171,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
break;
#endif
default:
debug("%s: invalid bus %u\n", __func__, bus);
return NULL;
}