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staging: r8188eu: the frame type is shifted out

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The index calculation in mgt_dispatcher does not use the frame type. The
4-bit right shift ignores protocol version and frame type.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220417102221.466524-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2022-04-17 12:22:18 +02:00 • committed by Greg Kroah-Hartman
parent bd379a2148
commit bea6af5447
1 changed files with 1 additions and 2 deletions
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3
drivers/staging/r8188eu/core/rtw_mlme_ext.c
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@ -408,8 +408,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
ptable = mlme_sta_tbl;
index = (le16_to_cpu(hdr->frame_control) &
(IEEE80211_FCTL_STYPE | IEEE80211_FCTL_FTYPE)) >> 4;
index = (le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
if (index > 13)
return;
ptable += index;