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(parent: 34b8886) | patch
wil6210: fix dma mapping error cleanup in __wil_tx_vring_tso
authorMaya Erez <qca_merez@qca.qualcomm.com>
Mon, 16 May 2016 19:23:33 +0000 (22:23 +0300)
committerKalle Valo <kvalo@qca.qualcomm.com>
Sat, 28 May 2016 08:19:21 +0000 (11:19 +0300)
commita1526f7eafa434f756579e2bc784b7605f96bf3e
tree902116008c285286722d1db0fd0fb8a46ce07c3btree | snapshot
parent34b8886e502a62d1355ccc0420044aa2749a24cdcommit | 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.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
drivers/net/wireless/ath/wil6210/txrx.c diff | blob | history
Domain: System / Kernel;