linux-kernel - [PATCH] drm/vc4: release firmware on error paths in vc4_hvs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <8305d098-bd28-45e6-acda-29e629dfccc9@stanley.mountain>
Date: Wed, 2 Apr 2025 14:00:24 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Maxime Ripard <mripard@...nel.org>
Cc: Dave Stevenson <dave.stevenson@...pberrypi.com>,
	Maíra Canal <mcanal@...lia.com>,
	Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] drm/vc4: release firmware on error paths in vc4_hvs_bind()

Call rpi_firmware_put() on these two error paths before returning.

Fixes: 2fa4ef5fb943 ("drm/vc4: hvs: Create hw_init function")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/vc4/vc4_hvs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 4811d794001f..41e9d0aff757 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -1678,6 +1678,7 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data)
 		hvs->core_clk = devm_clk_get(&pdev->dev,
 					     (vc4->gen >= VC4_GEN_6_C) ? "core" : NULL);
 		if (IS_ERR(hvs->core_clk)) {
+			rpi_firmware_put(firmware);
 			dev_err(&pdev->dev, "Couldn't get core clock\n");
 			return PTR_ERR(hvs->core_clk);
 		}
@@ -1685,6 +1686,7 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data)
 		hvs->disp_clk = devm_clk_get(&pdev->dev,
 					     (vc4->gen >= VC4_GEN_6_C) ? "disp" : NULL);
 		if (IS_ERR(hvs->disp_clk)) {
+			rpi_firmware_put(firmware);
 			dev_err(&pdev->dev, "Couldn't get disp clock\n");
 			return PTR_ERR(hvs->disp_clk);
 		}
-- 
2.47.2