When building without CONFIG_PCI, we can (depending on the architecture)
get a link failure:

ERROR: "pci_iounmap" [sound/pci/hda/snd-hda-codec-ca0132.ko] undefined!

Adding a compile-time check for PCI gets it to work correctly on
32-bit ARM.

Signed-off-by: Arnd Bergmann <[email protected]>
---
 sound/pci/hda/patch_ca0132.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index c40cb6336017..e5bdbc245682 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -8451,7 +8451,7 @@ static void ca0132_free(struct hda_codec *codec)
        ca0132_exit_chip(codec);
 
        snd_hda_power_down(codec);
-       if (spec->mem_base)
+       if (IS_ENABLED(CONFIG_PCI) && spec->mem_base)
                pci_iounmap(codec->bus->pci, spec->mem_base);
        kfree(spec->spec_init_verbs);
        kfree(codec->spec);
-- 
2.20.0

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