[PATCH 3/3] mt76: testmode: remove undefined behaviour in mt76_testmode_alloc_skb
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2021-05-27 11:35:45
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
Get rif of an undefined behaviour in mt76_testmode_alloc_skb routine
allocating skb frames
Fixes: 2601dda8faa76 ("mt76: testmode: add support to send larger packet")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/testmode.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/testmode.c b/drivers/net/wireless/mediatek/mt76/testmode.c
index c516469278a4..c6a85a0cfc89 100644
--- a/drivers/net/wireless/mediatek/mt76/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/testmode.c@@ -159,12 +159,8 @@ int mt76_testmode_alloc_skb(struct mt76_phy *phy, u32 len) head->len += frag->len; head->data_len += frag->len; - if (*frag_tail) { - (*frag_tail)->next = frag; - frag_tail = &frag; - } else { - *frag_tail = frag; - } + *frag_tail = frag; + frag_tail = &(*frag_tail)->next; } mt76_testmode_free_skb(phy);
--
2.31.1