ファイル
android_kernel_samsung_sm86…/core/dp/ol
Tiger Yu 6211cd7436 qcacld-3.0: Fix potential BUG_ON in the htt_rx_offload_msdu_pop_ll
qcacld-2.0 to qcacld-3.0 propagation

For HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND, the msdu_cnt is a signed
integer coming from firmware. If set the msdu_cnt to a negative value,
or be greater than the number of current elements in the queue, the loop
will execute lots of times in ol_rx_offload_deliver_ind_handler, the
htt_rx_netbuf_pop will cause the BUG_ON issue sooner or later if it is
low latency solution.

Change the msdu_cnt type from signed to unsigned and add the validity
msdu_cnt checking will fix this issue.

Change-Id: I436557a124074f59ab11fd937dfdc975b9caebe8
CRs-Fixed: 2149461
2017-12-10 23:38:26 -08:00
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