Commit 87066173 authored Apr 27, 2020 by Jérôme Pouiller Committed by Greg Kroah-Hartman Apr 28, 2020

staging: wfx: fix overflow in frame counters

It has been reported that trying to send small packets of data could
produce a "inconsistent notification" warning.

It seems that in some circumstances, the number of frame queued in the
driver could greatly increase and exceed UCHAR_MAX. So the field
"buffered" from struct sta_priv can overflow.

Just increase the size of "bueffered" to fix the problem.

Fixes: 7d2d2bfd ("staging: wfx: relocate "buffered" information to sta_priv")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200427134031.323403-10-Jerome.Pouiller@silabs.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent bfe2eb23

drivers/staging/wfx/sta.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -18,7 +18,7 @@ struct wfx_vif;
		struct wfx_sta_priv {
		int link_id;
		int vif_id;
		u8 buffered[IEEE80211_NUM_TIDS];
		int buffered[IEEE80211_NUM_TIDS];
		// Ensure atomicity of "buffered" and calls to ieee80211_sta_set_buffered()
		spinlock_t lock;
		};