ALSA: usb-audio: fix spelling mistakes

Fix some spelling mistakes as follows:
altenate ==> alternate
compatbile ==> compatible
perfoms ==> performs
dont'register ==> don't register
periodicaly ==> periodically
arount ==> around
Signed-off-by: gushengxian <gushengxian@yulong.com>
Link: https://lore.kernel.org/r/20210705120052.665212-1-gushengxian507419@gmail.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/card.h

@@ -19,7 +19,7 @@ struct audioformat {
 	unsigned char iface;		/* interface number */
 	unsigned char altsetting;	/* corresponding alternate setting */
 	unsigned char ep_idx;		/* endpoint array index */
-	unsigned char altset_idx;	/* array index of altenate setting */
+	unsigned char altset_idx;	/* array index of alternate setting */
 	unsigned char attributes;	/* corresponding attributes of cs endpoint */
 	unsigned char endpoint;		/* endpoint */
 	unsigned char ep_attr;		/* endpoint attributes */

sound/usb/endpoint.c

@@ -645,7 +645,7 @@ static bool endpoint_compatible(struct snd_usb_endpoint *ep,
 }
 
 /*
- * Check whether the given fp and hw params are compatbile with the current
+ * Check whether the given fp and hw params are compatible with the current
  * setup of the target EP for implicit feedback sync
  */
 bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip,
@@ -1245,7 +1245,7 @@ static int snd_usb_endpoint_set_params(struct snd_usb_audio *chip,
  *
  * This function sets up the EP to be fully usable state.
  * It's called either from hw_params or prepare callback.
- * The function checks need_setup flag, and perfoms nothing unless needed,
+ * The function checks need_setup flag, and performs nothing unless needed,
  * so it's safe to call this multiple times.
  *
  * This returns zero if unchanged, 1 if the configuration has changed,

sound/usb/media.c

@@ -285,7 +285,7 @@ int snd_media_device_create(struct snd_usb_audio *chip,
 			ret);
 
 	if (!media_devnode_is_registered(mdev->devnode)) {
-		/* dont'register if snd_media_mixer_init() failed */
+		/* don't register if snd_media_mixer_init() failed */
 		if (ret)
 			goto create_fail;
 

sound/usb/mixer_s1810c.c

@@ -163,7 +163,7 @@ snd_s1810c_send_ctl_packet(struct usb_device *dev, u32 a,
 }
 
 /*
- * When opening Universal Control the program periodicaly
+ * When opening Universal Control the program periodically
  * sends and receives state packets for syncinc state between
  * the device and the host.
  *

sound/usb/mixer_scarlett.c

@@ -21,7 +21,7 @@
  * Auto-detection via UAC2 is not feasible to properly discover the vast
  * majority of features. It's related to both Linux/ALSA's UAC2 as well as
  * Focusrite's implementation of it. Eventually quirks may be sufficient but
- * right now it's a major headache to work arount these things.
+ * right now it's a major headache to work around these things.
  *
  * NB. Neither the OSX nor the win driver provided by Focusrite performs
  * discovery, they seem to operate the same as this driver.