fbdev/core: Avoid uninitialized read in aperture_remove_conflicting_pci_device()

Return on error directly from the BAR-iterating loop instead of
break+return.

This is actually a cosmetic fix, since it would be highly unusual to
have this called for a PCI device without any memory BARs.

Fixes: 9d69ef183815 ("fbdev/core: Remove remove_conflicting_pci_framebuffers()")
Signed-off-by: Michał Mirosław <[e-mail]>
Signed-off-by: Thomas Zimmermann <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/e7[e-mail]

drivers/video/aperture.c

···
 		size = pci_resource_len(pdev, bar);
 		ret = aperture_remove_conflicting_devices(base, size, primary, name);
 		if (ret)
-			break;
+			return ret;
 	}
-
-	if (ret)
-		return ret;
 
 	/*
 	 * WARNING: Apparently we must kick fbdev drivers before vgacon,