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From: Sarangdhar Joshi <spjoshi@codeaurora.org>
To: Andy Gross <andy.gross@linaro.org>, David Brown <david.brown@linaro.org>
Cc: Sarangdhar Joshi <spjoshi@codeaurora.org>,
	linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Jordan Crouse <jcrouse@codeaurora.org>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Trilok Soni <tsoni@codeaurora.org>
Subject: [PATCH v2 3/3] firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails
Date: Thu,  3 Nov 2016 17:10:37 -0700	[thread overview]
Message-ID: <1478218237-1737-4-git-send-email-spjoshi@codeaurora.org> (raw)
In-Reply-To: <1478218237-1737-1-git-send-email-spjoshi@codeaurora.org>

When devm_clk_get fails for core clock, the failure was ignored
and the core_clk was explicitly set to NULL so that other
remaining clocks can be queried. However, now that we have a
cleaner way of expressing the clock dependency, return failure
when devm_clk_get fails for core clock.

Signed-off-by: Sarangdhar Joshi <spjoshi@codeaurora.org>
---
 drivers/firmware/qcom_scm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 844e90d..0321a26 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -395,10 +395,10 @@ static int qcom_scm_probe(struct platform_device *pdev)
 	if (clks & SCM_HAS_CORE_CLK) {
 		scm->core_clk = devm_clk_get(&pdev->dev, "core");
 		if (IS_ERR(scm->core_clk)) {
-			if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER)
-				return PTR_ERR(scm->core_clk);
-
-			scm->core_clk = NULL;
+			if (PTR_ERR(scm->core_clk) != -EPROBE_DEFER)
+				dev_err(&pdev->dev,
+					"failed to acquire core clk\n");
+			return PTR_ERR(scm->core_clk);
 		}
 	}
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

  parent reply	other threads:[~2016-11-04  0:10 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-04  0:10 [PATCH v2 0/3] Remove clocks dependency from SCM driver Sarangdhar Joshi
2016-11-04  0:10 ` Sarangdhar Joshi
2016-11-04  0:10 ` Sarangdhar Joshi
2016-11-04  0:10 ` [PATCH v2 1/3] dt-bindings: firmware: scm: Add MSM8996 DT bindings Sarangdhar Joshi
2016-11-04  0:10   ` Sarangdhar Joshi
     [not found]   ` <1478218237-1737-2-git-send-email-spjoshi-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-11-10  1:49     ` Stephen Boyd
2016-11-10  1:49       ` Stephen Boyd
2016-11-10  1:49       ` Stephen Boyd
2016-11-04  0:10 ` [PATCH v2 2/3] firmware: qcom: scm: Remove core, iface and bus clocks dependency Sarangdhar Joshi
2016-11-10  1:47   ` Stephen Boyd
2016-11-10  5:55     ` Bjorn Andersson
2016-11-10 23:17       ` Stephen Boyd
2016-11-11 22:07       ` Sarangdhar Joshi
2016-11-11 21:59     ` Sarangdhar Joshi
2016-11-04  0:10 ` Sarangdhar Joshi [this message]
2016-11-10  1:49   ` [PATCH v2 3/3] firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails Stephen Boyd
2016-11-11 21:30     ` Sarangdhar Joshi

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