On Tue, Oct 18, 2022 at 11:53:56AM +0200, Pavel Machek wrote:
Hi!
From: Wen Gong quic_wgong@quicinc.com
[ Upstream commit 1e1cb8e0b73e6f39a9d4a7a15d940b1265387eb5 ]
When running suspend test, kernel crash happened in ath10k, and it is fixed by commit b72a4aff947b ("ath10k: skip ath10k_halt during suspend for driver state RESTARTING").
Currently the crash is fixed, but as a common code style, it is better to set the pointer to NULL after memory is free.
This is to address the code style and it will avoid potential bug of use-after-free.
We don't have this patch in 4.19:
b72a4aff947b ("ath10k: skip ath10k_halt during suspend for driver state RESTARTING").
We probably should take that one, as this may depend on it. On the other hand, we don't need this one as it is just a cleanup...
I've dropped this from all queues now, thanks.
greg k-h