ALSA: hda: hda_component: Add missing #include guards

Add the conventional include guards around the content of the
hda_component.h header file. This prevents double-declaration of
struct hda_component if the header gets included multiple times.

This isn't causing any problems with current code, so no need to
backport to older kernels.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Message-ID: <20240307111216.45053-1-rf@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_component.h

@@ -6,6 +6,9 @@
  *                    Cirrus Logic International Semiconductor Ltd.
  */
 
+#ifndef __HDA_COMPONENT_H__
+#define __HDA_COMPONENT_H__
+
 #include <linux/acpi.h>
 #include <linux/component.h>
 
@@ -82,3 +85,5 @@ static inline void hda_component_manager_unbind(struct hda_codec *cdc,
 {
 	component_unbind_all(hda_codec_dev(cdc), comps);
 }
+
+#endif /* ifndef __HDA_COMPONENT_H__ */