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rtw89: don't kick off TX DMA if failed to write skb
[ Upstream commit a58fdb7 ] This is found by Smatch static checker warning: drivers/net/wireless/realtek/rtw89/mac80211.c:31 rtw89_ops_tx() error: uninitialized symbol 'qsel'. The warning is because 'qsel' isn't filled by rtw89_core_tx_write() due to failed to write. The way to fix it is to avoid kicking off TX DMA, so add 'return' to the failure case. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20211201093816.13806-1-pkshih@realtek.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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