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authorJames Minor <james.minor@ni.com>2016-10-03 13:00:02 -0500
committerKalle Valo <kvalo@qca.qualcomm.com>2016-10-06 10:14:35 +0300
commit3605d751d5dd82ad1586bed72a0ebc84d81e20c7 (patch)
treee84326a552bdb604db4dedf656d6e18934a8f42d /drivers/net/wireless/ath/ath6kl
parentebee76f7fa46851775942624fe6c7b80559a408a (diff)
ath6kl: fix busreqs so they can be reused when sg is cleaned up
To reuse the busreqs in case of hardware restart, they must be properly reinitialized. If the scat_req pointer isn't reset to 0, __ath6kl_sdio_write_async() will assume there is sg work to be done (causing a kernel OOPS). Signed-off-by: James Minor <james.minor@ni.com> Reviewed-by: Steve deRosier <steve.derosier@lairdtech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl')
-rw-r--r--drivers/net/wireless/ath/ath6kl/sdio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index eab0ab976af2..96ed0604b4e0 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -703,8 +703,10 @@ static void ath6kl_sdio_cleanup_scatter(struct ath6kl *ar)
* ath6kl_hif_rw_comp_handler() with status -ECANCELED so
* that the packet is properly freed?
*/
- if (s_req->busrequest)
+ if (s_req->busrequest) {
+ s_req->busrequest->scat_req = 0;
ath6kl_sdio_free_bus_req(ar_sdio, s_req->busrequest);
+ }
kfree(s_req->virt_dma_buf);
kfree(s_req->sgentries);
kfree(s_req);