treewide: correct the typo 'retun'

There are some spelling mistakes of 'retun' in comments which
should be instead of 'return'.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: WangYuli <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: WangYuli

arch/arm/mach-omap2/omap-mpuss-lowpower.c

@@ -333,7 +333,7 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 	omap_pm_ops.scu_prepare(cpu, power_state);
 
 	/*
-	 * CPU never retuns back if targeted power state is OFF mode.
+	 * CPU never returns back if targeted power state is OFF mode.
 	 * CPU ONLINE follows normal CPU ONLINE ptah via
 	 * omap4_secondary_startup().
 	 */

drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h

@@ -231,7 +231,7 @@ struct dpu_crtc_state {
 	container_of(x, struct dpu_crtc_state, base)
 
 /**
- * dpu_crtc_frame_pending - retun the number of pending frames
+ * dpu_crtc_frame_pending - return the number of pending frames
  * @crtc: Pointer to drm crtc object
  */
 static inline int dpu_crtc_frame_pending(struct drm_crtc *crtc)

drivers/infiniband/core/sa_query.c

@@ -1420,7 +1420,7 @@ enum opa_pr_supported {
 /*
  * opa_pr_query_possible - Check if current PR query can be an OPA query.
  *
- * Retuns PR_NOT_SUPPORTED if a path record query is not
+ * Returns PR_NOT_SUPPORTED if a path record query is not
  * possible, PR_OPA_SUPPORTED if an OPA path record query
  * is possible and PR_IB_SUPPORTED if an IB path record
  * query is possible.

drivers/input/misc/wistron_btns.c

@@ -1075,7 +1075,7 @@ static void wistron_led_init(struct device *parent)
 	}
 
 	if (leds_present & FE_MAIL_LED) {
-		/* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
+		/* bios_get_default_setting(MAIL) always returns 0, so just turn the led off */
 		wistron_mail_led.brightness = LED_OFF;
 		if (led_classdev_register(parent, &wistron_mail_led))
 			leds_present &= ~FE_MAIL_LED;

drivers/mtd/nand/raw/nandsim.c

@@ -1381,7 +1381,7 @@ static inline union ns_mem *NS_GET_PAGE(struct nandsim *ns)
 }
 
 /*
- * Retuns a pointer to the current byte, within the current page.
+ * Returns a pointer to the current byte, within the current page.
  */
 static inline u_char *NS_PAGE_BYTE_OFF(struct nandsim *ns)
 {

drivers/scsi/bfa/bfa_fcs.c

@@ -1431,7 +1431,7 @@ bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
  *	param[in]	vf_id - VF_ID
  *
  *	return
- *	If lookup succeeds, retuns fcs vf object, otherwise returns NULL
+ *	If lookup succeeds, returns fcs vf object, otherwise returns NULL
  */
 bfa_fcs_vf_t   *
 bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)

drivers/scsi/pmcraid.c

@@ -4009,7 +4009,7 @@ static void pmcraid_tasklet_function(unsigned long instance)
  * This routine un-registers registered interrupt handler and
  * also frees irqs/vectors.
  *
- * Retun Value
+ * Return Value
  *	None
  */
 static