linux-kernel - [PATCH v3 1/4] remoteproc: st: correct probe error management

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Date:   Tue, 31 Jan 2017 13:35:53 +0100
From:   Loic Pallardy <loic.pallardy@...com>
To:     <bjorn.andersson@...aro.org>, <ohad@...ery.com>,
        <lee.jones@...aro.org>
CC:     <loic.pallardy@...com>, <linux-remoteproc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel@...inux.com>,
        <patrice.chotard@...com>, <hugues.fruchet@...com>,
        <peter.griffin@...aro.org>
Subject: [PATCH v3 1/4] remoteproc: st: correct probe error management

Associated clock is prepared in st_rproc_parse_dt function.
it should be unprepared in case of error during probing.

Signed-off-by: Loic Pallardy <loic.pallardy@...com>
---
Changes from V2:
New patch fixing st_rproc_probe error management

 drivers/remoteproc/st_remoteproc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
index da4e152..bdfab49 100644
--- a/drivers/remoteproc/st_remoteproc.c
+++ b/drivers/remoteproc/st_remoteproc.c
@@ -247,7 +247,7 @@ static int st_rproc_probe(struct platform_device *pdev)
 	enabled = st_rproc_state(pdev);
 	if (enabled < 0) {
 		ret = enabled;
-		goto free_rproc;
+		goto free_clk;
 	}
 
 	if (enabled) {
@@ -259,10 +259,12 @@ static int st_rproc_probe(struct platform_device *pdev)
 
 	ret = rproc_add(rproc);
 	if (ret)
-		goto free_rproc;
+		goto free_clk;
 
 	return 0;
 
+free_clk:
+	clk_unprepare(ddata->clk);
 free_rproc:
 	rproc_free(rproc);
 	return ret;
-- 
1.9.1