This patch removes a unnecessary state read. The status value is never
evaluate after reading the state.
Also rename the status variable to dvdd, because this variable will be
used later.
Signed-off-by: Alexander Aring <alex.ar...@gmail.com>
---
drivers/net/ieee802154/at86rf230.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c
b/drivers/net/ieee802154/at86rf230.c
index 67c01bf..1331152 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -969,13 +969,9 @@ static int at86rf230_irq_polarity(struct at86rf230_local
*lp, int pol)
static int at86rf230_hw_init(struct at86rf230_local *lp)
{
int rc, irq_pol, irq_type;
- u8 status;
+ u8 dvdd;
u8 csma_seed[2];
- rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status);
- if (rc)
- return rc;
-
rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_FORCE_TRX_OFF);
if (rc)
return rc;
@@ -1015,10 +1011,10 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
/* Wait the next SLEEP cycle */
msleep(100);
- rc = at86rf230_read_subreg(lp, SR_DVDD_OK, &status);
+ rc = at86rf230_read_subreg(lp, SR_DVDD_OK, &dvdd);
if (rc)
return rc;
- if (!status) {
+ if (!dvdd) {
dev_err(&lp->spi->dev, "DVDD error\n");
return -EINVAL;
}
--
1.9.2
------------------------------------------------------------------------------
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