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Commit 9b28f92f authored by Chris Lew's avatar Chris Lew
Browse files

soc: qcom: glink: Fix ssr race condition in glink_close 



Add else statement in glink_close for a race condition where the
xprt state is set to GLINK_XPRT_DOWN and glink_close runs before
the channel is migrated.

CRs-Fixed: 988266
Change-Id: I4de6530f1fbffd9f3acd1fa539cf756364ea32ac
Signed-off-by: default avatarChris Lew <clew@codeaurora.org>
parent c865f055

drivers/soc/qcom/glink.c

+7 −0
Original line number Diff line number Diff line
@@ -2630,6 +2630,13 @@ relock: xprt_ctx = ctx->transport_ptr; 
			"channel Not closed yet local state [%d] remote_state [%d]\n",

			ctx->local_open_state, ctx->remote_opened);

		}

	} else {

		/*

		 * This case handles the scenario where glink_core_link_down

		 * changes the local_state to GLINK_XPRT_DOWN but glink_close

		 * gets the channel write lock before glink_core_channel_cleanup

		 */

		rwref_write_put(&ctx->ch_state_lhb2);

	}

	complete_all(&ctx->int_req_ack_complete);

	complete_all(&ctx->int_req_complete);