fbdev/nvidiafb: Reorder backlight and framebuffer init/cleanup

The driver's backlight code requires the framebuffer to be
registered. Therefore reorder the init and cleanup calls for
both data structures.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Antonino Daplas <adaplas@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-19-tzimmermann@suse.de

drivers/video/fbdev/nvidia/nvidia.c

@@ -1400,14 +1400,14 @@ static int nvidiafb_probe(struct pci_dev *pd, const struct pci_device_id *ent)
 
 	pci_set_drvdata(pd, info);
 
-	if (backlight)
-		nvidia_bl_init(par);
-
 	if (register_framebuffer(info) < 0) {
 		printk(KERN_ERR PFX "error registering nVidia framebuffer\n");
 		goto err_out_iounmap_fb;
 	}
 
+	if (backlight)
+		nvidia_bl_init(par);
+
 	printk(KERN_INFO PFX
 	       "PCI nVidia %s framebuffer (%dMB @ 0x%lX)\n",
 	       info->fix.id,
@@ -1439,9 +1439,9 @@ static void nvidiafb_remove(struct pci_dev *pd)
 
 	NVTRACE_ENTER();
 
+	nvidia_bl_exit(par);
 	unregister_framebuffer(info);
 
-	nvidia_bl_exit(par);
 	arch_phys_wc_del(par->wc_cookie);
 	iounmap(info->screen_base);
 	fb_destroy_modedb(info->monspecs.modedb);