Commit c9d44203 authored by Stefan Schmidt's avatar Stefan Schmidt Committed by Marcel Holtmann

ieee802154: cc2520: check for return values in cc2520_filter()

neither ram nor register write return values have been checked here.
Checking both now. Assign ret with 0 as all other assignments are inside
if blocks and might not happen before we return ret.

CID: 1230469
Signed-off-by: default avatarStefan Schmidt <stefan@osg.samsung.com>
Acked-by: default avatarVarka Bhadram <varkabhadram@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent fe8de008
......@@ -590,20 +590,21 @@ cc2520_filter(struct ieee802154_hw *hw,
struct ieee802154_hw_addr_filt *filt, unsigned long changed)
{
struct cc2520_private *priv = hw->priv;
int ret = 0;
if (changed & IEEE802154_AFILT_PANID_CHANGED) {
u16 panid = le16_to_cpu(filt->pan_id);
dev_vdbg(&priv->spi->dev,
"cc2520_filter called for pan id\n");
cc2520_write_ram(priv, CC2520RAM_PANID,
ret = cc2520_write_ram(priv, CC2520RAM_PANID,
sizeof(panid), (u8 *)&panid);
}
if (changed & IEEE802154_AFILT_IEEEADDR_CHANGED) {
dev_vdbg(&priv->spi->dev,
"cc2520_filter called for IEEE addr\n");
cc2520_write_ram(priv, CC2520RAM_IEEEADDR,
ret = cc2520_write_ram(priv, CC2520RAM_IEEEADDR,
sizeof(filt->ieee_addr),
(u8 *)&filt->ieee_addr);
}
......@@ -613,7 +614,7 @@ cc2520_filter(struct ieee802154_hw *hw,
dev_vdbg(&priv->spi->dev,
"cc2520_filter called for saddr\n");
cc2520_write_ram(priv, CC2520RAM_SHORTADDR,
ret = cc2520_write_ram(priv, CC2520RAM_SHORTADDR,
sizeof(addr), (u8 *)&addr);
}
......@@ -621,12 +622,14 @@ cc2520_filter(struct ieee802154_hw *hw,
dev_vdbg(&priv->spi->dev,
"cc2520_filter called for panc change\n");
if (filt->pan_coord)
cc2520_write_register(priv, CC2520_FRMFILT0, 0x02);
ret = cc2520_write_register(priv, CC2520_FRMFILT0,
0x02);
else
cc2520_write_register(priv, CC2520_FRMFILT0, 0x00);
ret = cc2520_write_register(priv, CC2520_FRMFILT0,
0x00);
}
return 0;
return ret;
}
static inline int cc2520_set_tx_power(struct cc2520_private *priv, s32 mbm)
......
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