[09/17] staging: wfx: fix overflow in frame counters

Message ID 20200427134031.323403-10-Jerome.Pouiller@silabs.com
State New
Headers show
  • staging: wfx: misc fixes
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Commit Message

Jerome Pouiller April 27, 2020, 1:40 p.m.
From: Jérôme Pouiller <jerome.pouiller@silabs.com>

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: 7d2d2bfdeb82 ("staging: wfx: relocate "buffered" information to sta_priv")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
 drivers/staging/wfx/sta.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


diff --git a/drivers/staging/wfx/sta.h b/drivers/staging/wfx/sta.h
index f7e876d1b031..a0e025c18341 100644
--- a/drivers/staging/wfx/sta.h
+++ b/drivers/staging/wfx/sta.h
@@ -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;