tree c2591ea97d34c1a197ff2826c1a9df0e4d25c0e9
parent 6b8a127bf66d395705153fdaf3fc0b52bedd2e9f
author Carl Huang <cjhuang@codeaurora.org> 1520232242 +0800
committer Kalle Valo <kvalo@codeaurora.org> 1522077183 +0300

ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait

The skb may be freed in tx completion context before
trace_ath10k_wmi_cmd is called. This can be easily captured when
KASAN(Kernel Address Sanitizer) is enabled. The fix is to move
trace_ath10k_wmi_cmd before the send operation. As the ret has no
meaning in trace_ath10k_wmi_cmd then, so remove this parameter too.

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>