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qcacld-3.0: Fix TSO seg cookie init crash

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In one of the recent fixes, we are setting the TSO seg contents to zero
when the segment is added back to the free list. The segment cookie is
not re-initalized at this point. Hence, when this segment is
re-allocated, it fails the cookie check and there is a system crash.

Fix the issue by reinitializing the segment cookie after zero-ing out
its contents.

Change-Id: I7947e3ce4f80f1b19ebf5ef73ff75dee19ec7364
CRs-Fixed: 2011786
This commit is contained in:
Mohit Khanna 2017-02-24 19:23:57 -08:00 • committed by Sandeep Puligilla
commit f9f659735a
1 changed files with 1 additions and 0 deletions
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1
core/dp/txrx/ol_tx_desc.c
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@ -825,6 +825,7 @@ void ol_tso_free_segment(struct ol_txrx_pdev_t *pdev,
qdf_mem_zero(tso_seg, sizeof(*tso_seg));
tso_seg->next = pdev->tso_seg_pool.freelist;
tso_seg->on_freelist = 1;
tso_seg->cookie = TSO_SEG_MAGIC_COOKIE;
pdev->tso_seg_pool.freelist = tso_seg;
pdev->tso_seg_pool.num_free++;
qdf_spin_unlock_bh(&pdev->tso_seg_pool.tso_mutex);