diff options
| author | Maya Erez <qca_merez@qca.qualcomm.com> | 2016-05-29 08:46:34 +0300 |
|---|---|---|
| committer | Kyle Yan <kyan@codeaurora.org> | 2016-06-08 15:18:09 -0700 |
| commit | 215177e6063bcfd4abff6b66fa05bcb7c3ea363c (patch) | |
| tree | bc9aa064f3a90daefbaafcca4ecb125462e6b3c6 | |
| parent | b6b5f4b2a2eeef2b7be923c089759f1965a1fe43 (diff) | |
wil6210: fix dma mapping error cleanup in __wil_tx_vring_tso
In case we fail to map one of the TSO SKB fragments, we need to
clear all the mapped descriptors, from swhead to swhead+descs_used-1.
Change the desc index calculation to
i = (swhead + descs_used - 1) % vring->size;
to prevent unmpping of (swhead + descs_used) descriptor that wasn't
mapped.
Change-Id: I81b99522ada809fa375c6b6887f8ea0e6482fba3
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: a1526f7eafa434f756579e2bc784b7605f96bf3e
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
CRs-Fixed: 1015627
Signed-off-by: Maya Erez <merez@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 483e0634041c..f2f6a404d3d1 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -1594,7 +1594,7 @@ mem_error: while (descs_used > 0) { struct wil_ctx *ctx; - i = (swhead + descs_used) % vring->size; + i = (swhead + descs_used - 1) % vring->size; d = (struct vring_tx_desc *)&vring->va[i].tx; _desc = &vring->va[i].tx; *d = *_desc; |