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>

diff --git a/drivers/spi/bfin_spi6xx.c b/drivers/spi/bfin_spi6xx.c
index c25c4a9aeab5550d34b9b544a22b9d64bfc185ad..07b833d3a3de22b134b6d9ee4b1ffc6b422034f8 100644 (file)
--- a/drivers/spi/bfin_spi6xx.c
+++ b/drivers/spi/bfin_spi6xx.c
@@ -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;
        }