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From: Lizhi Hou <lizhi.hou@amd.com>
To: <ogabbay@kernel.org>, <quic_jhugo@quicinc.com>,
	<dri-devel@lists.freedesktop.org>
Cc: Lizhi Hou <lizhi.hou@amd.com>, <linux-kernel@vger.kernel.org>,
	<min.ma@amd.com>, <max.zhen@amd.com>, <sonal.santan@amd.com>,
	<king.tam@amd.com>, <mario.limonciello@amd.com>,
	Dan Carpenter <dan.carpenter@linaro.org>
Subject: [PATCH v2] accel/amdxdna: Return error when setting clock failed for npu1
Date: Thu, 9 Jan 2025 11:48:11 -0800	[thread overview]
Message-ID: <20250109194811.499505-1-lizhi.hou@amd.com> (raw)

Due to miss returning error when setting clock, the smatch static
checker reports warning:
  drivers/accel/amdxdna/aie2_smu.c:68 npu1_set_dpm()
  error: uninitialized symbol 'freq'.

Fixes: f4d7b8a6bc8c ("accel/amdxdna: Enhance power management settings")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/dri-devel/202267d0-882e-4593-b58d-be9274592f9b@stanley.mountain/
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
---
 drivers/accel/amdxdna/aie2_smu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/accel/amdxdna/aie2_smu.c b/drivers/accel/amdxdna/aie2_smu.c
index 73388443c676..d303701b0ded 100644
--- a/drivers/accel/amdxdna/aie2_smu.c
+++ b/drivers/accel/amdxdna/aie2_smu.c
@@ -64,6 +64,7 @@ int npu1_set_dpm(struct amdxdna_dev_hdl *ndev, u32 dpm_level)
 	if (ret) {
 		XDNA_ERR(ndev->xdna, "Set npu clock to %d failed, ret %d\n",
 			 ndev->priv->dpm_clk_tbl[dpm_level].npuclk, ret);
+		return ret;
 	}
 	ndev->npuclk_freq = freq;
 
@@ -72,6 +73,7 @@ int npu1_set_dpm(struct amdxdna_dev_hdl *ndev, u32 dpm_level)
 	if (ret) {
 		XDNA_ERR(ndev->xdna, "Set h clock to %d failed, ret %d\n",
 			 ndev->priv->dpm_clk_tbl[dpm_level].hclk, ret);
+		return ret;
 	}
 	ndev->hclk_freq = freq;
 	ndev->dpm_level = dpm_level;
-- 
2.34.1


             reply	other threads:[~2025-01-09 19:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-09 19:48 Lizhi Hou [this message]
2025-01-09 19:55 ` Mario Limonciello

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