From: Vinod Koul <vinod.koul@intel.com>
Date: Fri, 24 Mar 2017 17:40:28 +0000 (+0530)
Subject: ASoC: Intel: Skylake: Don't unload module when in use
X-Git-Tag: v4.14-rc1~902^2~3^2~14^2~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f7ea77772dfaa404ac0bcdea5c262c24e8b860db;p=platform%2Fkernel%2Flinux-rpi.git

ASoC: Intel: Skylake: Don't unload module when in use

A module may have multiple instances in DSP, so unload only when usage
count is zero.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/intel/skylake/skl-sst.c b/sound/soc/intel/skylake/skl-sst.c
index 39d4aaa..5395297 100644
--- a/sound/soc/intel/skylake/skl-sst.c
+++ b/sound/soc/intel/skylake/skl-sst.c
@@ -417,6 +417,11 @@ static int skl_unload_module(struct sst_dsp *ctx, u16 mod_id)
 		dev_err(ctx->dev, "Module bad usage cnt!:%d\n", usage_cnt);
 		return -EIO;
 	}
+
+	/* if module is used by others return, no need to unload */
+	if (usage_cnt > 0)
+		return 0;
+
 	ret = skl_ipc_unload_modules(&skl->ipc,
 			SKL_NUM_MODULES, &mod_id);
 	if (ret < 0) {