ieee802154: fix at86rf212_set_txpower() exit path
The commit 9b2777d6089bc ("ieee802154: add TX power control to
wpan_phy") introduced the new function at86rf212_set_txpower() with
the questionable check of the return of __at86rf230_write() in the
exit path:
1) Both at86rf212_set_txpower() and __at86rf230_write() have the
same return type.
2) Whatever __at86rf230_write() returns becomes the return value of
at86rf212_set_txpower().
Thus, fix the exit path by getting rid of that check entirely.
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index dd9ef5e..03e24c5 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -786,7 +786,6 @@
at86rf212_set_txpower(struct ieee802154_dev *dev, int db)
{
struct at86rf230_local *lp = dev->priv;
- int rc;
/* typical maximum output is 5dBm with RG_PHY_TX_PWR 0x60, lower five
* bits decrease power in 1dB steps. 0x60 represents extra PA gain of
@@ -799,11 +798,7 @@
db = -(db - 5);
- rc = __at86rf230_write(lp, RG_PHY_TX_PWR, 0x60 | db);
- if (rc)
- return rc;
-
- return 0;
+ return __at86rf230_write(lp, RG_PHY_TX_PWR, 0x60 | db);
}
static int
