Claude review: fbdev: radeon: fix potential memory leak in radeonfb_pci_register()

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Status: Needs revision — placement is correct but incomplete**

The patch adds `fb_destroy_modelist()` between `err_unmap_fb` and `err_unmap_rom`:

```c
 err_unmap_fb:
 	iounmap(rinfo->fb_base);
+	fb_destroy_modelist(&info->modelist);
 err_unmap_rom:
```

I verified in the source tree that `radeon_check_modes()` (which populates the modelist via `fb_add_videomode()`) is called at line 2425, and the only `goto err_unmap_rom` is at line 2373 (before the modelist is populated), while the only `goto err_unmap_fb` is at line 2460 (after). So the placement between the two labels is correct — jumps to `err_unmap_rom` bypass the cleanup (modelist not yet populated), while jumps to `err_unmap_fb` fall through it.

However, the **normal remove path** (`radeonfb_pci_unregister()`) should also be checked. If it doesn't call `fb_destroy_modelist()`, that's a separate leak on module unload.

The Fixes tag citing `1da177e4c3f4 ("Linux-2.6.12-rc2")` is technically correct but a bit odd — this is the initial Linux git import. A more precise Fixes tag would reference the commit that added the `fb_add_videomode()` call in `radeon_check_modes()`.

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