linux-kernel - [PATCH] firmware/sysfb: fix an error code in sysfb

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Message-ID: <aaaa2e13-849b-41a0-8186-25f3d2a16f86@moroto.mountain>
Date: Thu, 22 Feb 2024 09:13:21 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Thomas Zimmermann <tzimmermann@...e.de>
Cc: Javier Martinez Canillas <javierm@...hat.com>,
	Helge Deller <deller@....de>, Huacai Chen <chenhuacai@...nel.org>,
	Ard Biesheuvel <ardb@...nel.org>,
	Hans de Goede <hdegoede@...hat.com>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] firmware/sysfb: fix an error code in sysfb_init()

This error path accidentally returns success when it should preserve the
error code from sysfb_parent_dev().

Fixes: 4e754597d603 ("firmware/sysfb: Create firmware device only for enabled PCI devices")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/firmware/sysfb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/sysfb.c b/drivers/firmware/sysfb.c
index a6b48703dc9e..880ffcb50088 100644
--- a/drivers/firmware/sysfb.c
+++ b/drivers/firmware/sysfb.c
@@ -127,8 +127,10 @@ static __init int sysfb_init(void)
 	sysfb_apply_efi_quirks();
 
 	parent = sysfb_parent_dev(si);
-	if (IS_ERR(parent))
+	if (IS_ERR(parent)) {
+		ret = PTR_ERR(parent);
 		goto unlock_mutex;
+	}
 
 	/* try to create a simple-framebuffer device */
 	compatible = sysfb_parse_mode(si, &mode);
-- 
2.43.0