linux-kernel - [PATCH v3 3/8] media: qcom: camss: Fix potential crash if domain attach fails

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Message-ID: <20241011140932.1744124-4-quic_vikramsa@quicinc.com>
Date: Fri, 11 Oct 2024 19:39:27 +0530
From: Vikram Sharma <quic_vikramsa@...cinc.com>
To: <rfoss@...nel.org>, <todor.too@...il.com>, <bryan.odonoghue@...aro.org>,
        <mchehab@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <akapatra@...cinc.com>, <hariramp@...cinc.com>,
        <andersson@...nel.org>, <konradybcio@...nel.org>,
        <hverkuil-cisco@...all.nl>, <cros-qcom-dts-watchers@...omium.org>,
        <catalin.marinas@....com>, <will@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <quic_vikramsa@...cinc.com>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...cinc.com>, <stable@...r.kernel.org>
Subject: [PATCH v3 3/8] media: qcom: camss: Fix potential crash if domain attach fails

Fix a potential crash in camss by ensuring detach is skipped if attach
is unsuccessful.

Fixes: d89751c61279 ("media: qcom: camss: Add support for named power-domains")
CC: stable@...r.kernel.org
Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
---
 drivers/media/platform/qcom/camss/camss.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index d64985ca6e88..b6658df37709 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -2131,8 +2131,7 @@ static int camss_configure_pd(struct camss *camss)
 		camss->genpd = dev_pm_domain_attach_by_name(camss->dev,
 							    camss->res->pd_name);
 		if (IS_ERR(camss->genpd)) {
-			ret = PTR_ERR(camss->genpd);
-			goto fail_pm;
+			return PTR_ERR(camss->genpd);
 		}
 	}
 
@@ -2149,7 +2148,7 @@ static int camss_configure_pd(struct camss *camss)
 			ret = -ENODEV;
 		else
 			ret = PTR_ERR(camss->genpd);
-		goto fail_pm;
+		return ret;
 	}
 	camss->genpd_link = device_link_add(camss->dev, camss->genpd,
 					    DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME |
-- 
2.25.1