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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-05-03 15:54:36 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-06-25 12:55:25 +0200 |
| commit | b1571a0e77d8cef14227af293c6dda1464a57270 (patch) | |
| tree | cdf474bbcbea306af3768044726e09c68a0e2c5f /drivers/net/wireless/mediatek/mt76/mt7615/main.c | |
| parent | 4875e34679ba259bb8fa6a3ac337d76c8b7283a9 (diff) | |
| download | linux-stable-b1571a0e77d8cef14227af293c6dda1464a57270.tar.gz linux-stable-b1571a0e77d8cef14227af293c6dda1464a57270.tar.bz2 linux-stable-b1571a0e77d8cef14227af293c6dda1464a57270.zip | |
mt76: Fix a signedness bug in mt7615_add_interface()
The problem is that "mvif->omac_idx" is a u8 so it can't be negative
and the error handling won't work. The get_omac_idx() function returns
-1 on error.
Fixes: 04b8e65922f6 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/main.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index 80e6b211f60b..8d7a47d1b205 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -77,11 +77,12 @@ static int mt7615_add_interface(struct ieee80211_hw *hw, goto out; } - mvif->omac_idx = get_omac_idx(vif->type, dev->omac_mask); - if (mvif->omac_idx < 0) { + idx = get_omac_idx(vif->type, dev->omac_mask); + if (idx < 0) { ret = -ENOSPC; goto out; } + mvif->omac_idx = idx; /* TODO: DBDC support. Use band 0 and wmm 0 for now */ mvif->band_idx = 0; |