linux-kernel - Re: commit c2fe0480cd77 leads to hang on boot

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Message-ID: <20240829230438.3226-1-spasswolf@web.de>
Date: Fri, 30 Aug 2024 01:04:37 +0200
From: Bert Karwatzki <spasswolf@....de>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Bert Karwatzki <spasswolf@....de>,
	linux-kernel@...r.kernel.org
Subject: Re: commit c2fe0480cd77 leads to hang on boot

To look into the issue I applied the following patch to next-20240829:

diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 20517448487e..ba2b0d4b1bd3 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -573,6 +573,8 @@ static int efifb_probe(struct platform_device *dev)
 		pr_err("efifb: cannot acquire aperture\n");
 		goto err_fb_dealloc_cmap;
 	}
+	printk(KERN_INFO "%s: not calling devm_register_framebuffer\n", __func__);
+	goto err_fb_dealloc_cmap;
 	err = devm_register_framebuffer(&dev->dev, info);
 	if (err < 0) {
 		pr_err("efifb: cannot register framebuffer\n");

Now booting works again so the problem seems to be in devm_register_framebuffer().

Bert Karwatzki