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ath10k: fixup extended per sta tx statistics

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[ Upstream commit 539b44e70c ]

I had a couple concerns with this code.  First, we definitely need to
set the error code if the kzalloc() fails.  Secondly, I was worried that
if we didn't set "arsta->tx_stats" to NULL after freeing it, then it
looks to me like it might lead to a use after free.  I can't test that,
but it's harmless to set it to NULL so I did.

Fixes: a904417fc8 ("ath10k: add extended per sta tx statistics support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2018-10-18 10:36:19 +03:00 • committed by Greg Kroah-Hartman
commit 174f97e48b
1 changed files with 6 additions and 2 deletions
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