Commit 3605d751 authored Oct 03, 2016 by James Minor Committed by Kalle Valo Oct 06, 2016

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>

parent ebee76f7

drivers/net/wireless/ath/ath6kl/sdio.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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);