linux-kernel - [PATCH] firmware: qcom: scm: Fix incorrect of_node_put call in scm

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Message-Id: <1512489134-28220-1-git-send-email-lollivier@baylibre.com>
Date:   Tue,  5 Dec 2017 16:52:14 +0100
From:   Loys Ollivier <lollivier@...libre.com>
To:     Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>
Cc:     Loys Ollivier <lollivier@...libre.com>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jerome Brunet <jbrunet@...libre.com>
Subject: [PATCH] firmware: qcom: scm: Fix incorrect of_node_put call in scm_init

When using other platform architectures, in the init of the qcom_scm
driver, of_node_put is called on /firmware if no qcom dt is found.
This results in a kernel error: Bad of_node_put() on /firmware.

The call to of_node_put from the qcom_scm init is unnecessary as
of_find_matching_node is calling it automatically.

Remove this of_node_put().

Fixes: d0f6fa7ba2d6 ("firmware: qcom: scm: Convert SCM to platform driver")
Signed-off-by: Loys Ollivier <lollivier@...libre.com>
---
 drivers/firmware/qcom_scm.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index af4c75217ea6..575930c80fba 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -633,7 +633,6 @@ static int __init qcom_scm_init(void)
 	np = of_find_matching_node(fw_np, qcom_scm_dt_match);
 
 	if (!np) {
-		of_node_put(fw_np);
 		return -ENODEV;
 	}
 
-- 
2.7.4