scripts/spelling.txt: add "an union" pattern and fix typo instances

Fix typos and add the following to the scripts/spelling.txt:

  an union||a union

Link: http://lkml.kernel.org/r/1481573103-11329-5-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation/media/uapi/dvb/dvb-frontend-parameters.rst

@@ -9,7 +9,7 @@ frontend parameters
 The kind of parameters passed to the frontend device for tuning depend
 on the kind of hardware you are using.
 
-The struct ``dvb_frontend_parameters`` uses an union with specific
+The struct ``dvb_frontend_parameters`` uses a union with specific
 per-system parameters. However, as newer delivery systems required more
 data, the structure size weren't enough to fit, and just extending its
 size would break the existing applications. So, those parameters were
@@ -23,7 +23,7 @@ So, newer applications should use
 instead, in order to be able to support the newer System Delivery like
 DVB-S2, DVB-T2, DVB-C2, ISDB, etc.
 
-All kinds of parameters are combined as an union in the
+All kinds of parameters are combined as a union in the
 FrontendParameters structure:
 
 

arch/x86/include/asm/desc_defs.h

@@ -15,7 +15,7 @@
  * FIXME: Accessing the desc_struct through its fields is more elegant,
  * and should be the one valid thing to do. However, a lot of open code
  * still touches the a and b accessors, and doing this allow us to do it
- * incrementally. We keep the signature as a struct, rather than an union,
+ * incrementally. We keep the signature as a struct, rather than a union,
  * so we can get rid of it transparently in the future -- glommer
  */
 /* 8 byte segment descriptor */

drivers/acpi/acpica/dbconvert.c

@@ -242,7 +242,7 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Convert a typed and tokenized string to an union acpi_object. Typing:
+ * DESCRIPTION: Convert a typed and tokenized string to a union acpi_object. Typing:
  *              1) String objects were surrounded by quotes.
  *              2) Buffer objects were surrounded by parentheses.
  *              3) Package objects were surrounded by brackets "[]".

drivers/acpi/acpica/nspredef.c

@@ -323,7 +323,7 @@ acpi_ns_check_reference(struct acpi_evaluate_info *info,
 
 	/*
 	 * Check the reference object for the correct reference type (opcode).
-	 * The only type of reference that can be converted to an union acpi_object is
+	 * The only type of reference that can be converted to a union acpi_object is
 	 * a reference to a named object (reference class: NAME)
 	 */
 	if (return_object->reference.class == ACPI_REFCLASS_NAME) {

drivers/acpi/acpica/nsxfeval.c

@@ -495,9 +495,9 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info)
 	/*
 	 * Two types of references are supported - those created by Index and
 	 * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted
-	 * to an union acpi_object, so it is not dereferenced here. A ddb_handle
+	 * to a union acpi_object, so it is not dereferenced here. A ddb_handle
 	 * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to
-	 * an union acpi_object.
+	 * a union acpi_object.
 	 */
 	switch (info->return_object->reference.class) {
 	case ACPI_REFCLASS_INDEX:

drivers/staging/lustre/lustre/include/lustre/lustre_idl.h

@@ -1704,7 +1704,7 @@ struct ost_lvb {
  *   lquota data structures
  */
 
-/* The lquota_id structure is an union of all the possible identifier types that
+/* The lquota_id structure is a union of all the possible identifier types that
  * can be used with quota, this includes:
  * - 64-bit user ID
  * - 64-bit group ID

include/linux/dcache.h

@@ -562,7 +562,7 @@ static inline struct dentry *d_backing_dentry(struct dentry *upper)
  * @inode: inode to select the dentry from multiple layers (can be NULL)
  * @flags: open flags to control copy-up behavior
  *
- * If dentry is on an union/overlay, then return the underlying, real dentry.
+ * If dentry is on a union/overlay, then return the underlying, real dentry.
  * Otherwise return the dentry itself.
  *
  * See also: Documentation/filesystems/vfs.txt
@@ -581,7 +581,7 @@ static inline struct dentry *d_real(struct dentry *dentry,
  * d_real_inode - Return the real inode
  * @dentry: The dentry to query
  *
- * If dentry is on an union/overlay, then return the underlying, real inode.
+ * If dentry is on a union/overlay, then return the underlying, real inode.
  * Otherwise return d_inode().
  */
 static inline struct inode *d_real_inode(const struct dentry *dentry)

include/media/v4l2-ctrls.h

@@ -174,10 +174,10 @@ typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv);
  *		not freed when the control is deleted. Should this be needed
  *		then a new internal bitfield can be added to tell the framework
  *		to free this pointer.
- * @p_cur:	The control's current value represented via an union with
+ * @p_cur:	The control's current value represented via a union with
  *		provides a standard way of accessing control types
  *		through a pointer.
- * @p_new:	The control's new value represented via an union with provides
+ * @p_new:	The control's new value represented via a union with provides
  *		a standard way of accessing control types
  *		through a pointer.
  */

include/xen/interface/grant_table.h

@@ -181,7 +181,7 @@ struct grant_entry_header {
 };
 
 /*
- * Version 2 of the grant entry structure, here is an union because three
+ * Version 2 of the grant entry structure, here is a union because three
  * different types are suppotted: full_page, sub_page and transitive.
  */
 union grant_entry_v2 {

scripts/spelling.txt

@@ -86,6 +86,7 @@ alue||value
 ambigious||ambiguous
 amoung||among
 amout||amount
+an union||a union
 an user||a user
 an userspace||a userspace
 analysator||analyzer

sound/pci/ice1712/wm8766.c

@@ -254,7 +254,7 @@ static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol,
 	int n = kcontrol->private_value;
 	u16 val, regval1, regval2;
 
-	/* this also works for enum because value is an union */
+	/* this also works for enum because value is a union */
 	regval1 = ucontrol->value.integer.value[0];
 	regval2 = ucontrol->value.integer.value[1];
 	if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {

sound/pci/ice1712/wm8776.c

@@ -528,7 +528,7 @@ static int snd_wm8776_ctl_put(struct snd_kcontrol *kcontrol,
 	int n = kcontrol->private_value;
 	u16 val, regval1, regval2;
 
-	/* this also works for enum because value is an union */
+	/* this also works for enum because value is a union */
 	regval1 = ucontrol->value.integer.value[0];
 	regval2 = ucontrol->value.integer.value[1];
 	if (wm->ctl[n].flags & WM8776_FLAG_INVERT) {

tools/perf/util/probe-finder.c

@@ -464,7 +464,7 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
 		/* Verify it is a data structure  */
 		tag = dwarf_tag(&type);
 		if (tag != DW_TAG_structure_type && tag != DW_TAG_union_type) {
-			pr_warning("%s is not a data structure nor an union.\n",
+			pr_warning("%s is not a data structure nor a union.\n",
 				   varname);
 			return -EINVAL;
 		}
@@ -479,7 +479,7 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
 	} else {
 		/* Verify it is a data structure  */
 		if (tag != DW_TAG_structure_type && tag != DW_TAG_union_type) {
-			pr_warning("%s is not a data structure nor an union.\n",
+			pr_warning("%s is not a data structure nor a union.\n",
 				   varname);
 			return -EINVAL;
 		}

tools/perf/util/sort.h

@@ -108,7 +108,7 @@ struct hist_entry {
 		/*
 		 * Since perf diff only supports the stdio output, TUI
 		 * fields are only accessed from perf report (or perf
-		 * top).  So make it an union to reduce memory usage.
+		 * top).  So make it a union to reduce memory usage.
 		 */
 		struct hist_entry_diff	diff;
 		struct /* for TUI */ {