Remove unnecessary parens on return.

This is a mechanical change generated from the following command:

find crypto/{asn1,pem,x509,x509v3} -name '*.c' -o -name '*.h' | xargs sed -i -e 's/return (\([^;()]*\));/return \1;/'

Change-Id: I957295af96c4aa08d6006e27093fd3a07fb6fe75
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/53089
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
diff --git a/crypto/asn1/a_bitstr.c b/crypto/asn1/a_bitstr.c
index 8ef0d12..9c50857 100644
--- a/crypto/asn1/a_bitstr.c
+++ b/crypto/asn1/a_bitstr.c
@@ -128,7 +128,7 @@
   }
   p += len;
   *pp = p;
-  return (ret);
+  return ret;
 }
 
 ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
@@ -150,7 +150,7 @@
 
   if ((a == NULL) || ((*a) == NULL)) {
     if ((ret = ASN1_BIT_STRING_new()) == NULL) {
-      return (NULL);
+      return NULL;
     }
   } else {
     ret = (*a);
@@ -195,12 +195,12 @@
     (*a) = ret;
   }
   *pp = p;
-  return (ret);
+  return ret;
 err:
   if ((ret != NULL) && ((a == NULL) || (*a != ret))) {
     ASN1_BIT_STRING_free(ret);
   }
-  return (NULL);
+  return NULL;
 }
 
 // These next 2 functions from Goetz Babin-Ebell <babinebell@trustcenter.de>
@@ -223,7 +223,7 @@
 
   if ((a->length < (w + 1)) || (a->data == NULL)) {
     if (!value) {
-      return (1);  // Don't need to set
+      return 1;  // Don't need to set
     }
     if (a->data == NULL) {
       c = (unsigned char *)OPENSSL_malloc(w + 1);
@@ -244,7 +244,7 @@
   while ((a->length > 0) && (a->data[a->length - 1] == 0)) {
     a->length--;
   }
-  return (1);
+  return 1;
 }
 
 int ASN1_BIT_STRING_get_bit(const ASN1_BIT_STRING *a, int n) {
@@ -253,7 +253,7 @@
   w = n / 8;
   v = 1 << (7 - (n & 0x07));
   if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL)) {
-    return (0);
+    return 0;
   }
   return ((a->data[w] & v) != 0);
 }
diff --git a/crypto/asn1/a_bool.c b/crypto/asn1/a_bool.c
index e4703c6..2a4448c 100644
--- a/crypto/asn1/a_bool.c
+++ b/crypto/asn1/a_bool.c
@@ -65,7 +65,7 @@
 
   r = ASN1_object_size(0, 1, V_ASN1_BOOLEAN);
   if (pp == NULL) {
-    return (r);
+    return r;
   }
 
   if (*pp == NULL) {
diff --git a/crypto/asn1/a_dup.c b/crypto/asn1/a_dup.c
index 402584c..8ee0c7e 100644
--- a/crypto/asn1/a_dup.c
+++ b/crypto/asn1/a_dup.c
@@ -70,16 +70,16 @@
   void *ret;
 
   if (x == NULL) {
-    return (NULL);
+    return NULL;
   }
 
   i = ASN1_item_i2d(x, &b, it);
   if (b == NULL) {
     OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
-    return (NULL);
+    return NULL;
   }
   p = b;
   ret = ASN1_item_d2i(NULL, &p, i, it);
   OPENSSL_free(b);
-  return (ret);
+  return ret;
 }
diff --git a/crypto/asn1/a_gentm.c b/crypto/asn1/a_gentm.c
index 00a1282..e31ac1d 100644
--- a/crypto/asn1/a_gentm.c
+++ b/crypto/asn1/a_gentm.c
@@ -93,9 +93,9 @@
       }
       s->type = V_ASN1_GENERALIZEDTIME;
     }
-    return (1);
+    return 1;
   } else {
-    return (0);
+    return 0;
   }
 }
 
diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index a13576a..316210e 100644
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -426,7 +426,7 @@
   } else if (ai->type & V_ASN1_NEG) {
     BN_set_negative(ret, 1);
   }
-  return (ret);
+  return ret;
 }
 
 BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn) {
diff --git a/crypto/asn1/a_object.c b/crypto/asn1/a_object.c
index 186ee67..17783ba 100644
--- a/crypto/asn1/a_object.c
+++ b/crypto/asn1/a_object.c
@@ -191,7 +191,7 @@
   if ((a == NULL) || ((*a) == NULL) ||
       !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
     if ((ret = ASN1_OBJECT_new()) == NULL) {
-      return (NULL);
+      return NULL;
     }
   } else {
     ret = (*a);
@@ -232,13 +232,13 @@
     (*a) = ret;
   }
   *pp = p;
-  return (ret);
+  return ret;
 err:
   OPENSSL_PUT_ERROR(ASN1, i);
   if ((ret != NULL) && ((a == NULL) || (*a != ret))) {
     ASN1_OBJECT_free(ret);
   }
-  return (NULL);
+  return NULL;
 }
 
 ASN1_OBJECT *ASN1_OBJECT_new(void) {
@@ -247,7 +247,7 @@
   ret = (ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
   if (ret == NULL) {
     OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
-    return (NULL);
+    return NULL;
   }
   ret->length = 0;
   ret->data = NULL;
@@ -255,7 +255,7 @@
   ret->sn = NULL;
   ret->ln = NULL;
   ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
-  return (ret);
+  return ret;
 }
 
 void ASN1_OBJECT_free(ASN1_OBJECT *a) {
diff --git a/crypto/asn1/a_strex.c b/crypto/asn1/a_strex.c
index 3906bc9..1bb574b 100644
--- a/crypto/asn1/a_strex.c
+++ b/crypto/asn1/a_strex.c
@@ -434,7 +434,7 @@
   const char *p;
 
   if (v == NULL) {
-    return (0);
+    return 0;
   }
   n = 0;
   p = (const char *)v->data;
@@ -447,17 +447,17 @@
     n++;
     if (n >= 80) {
       if (BIO_write(bp, buf, n) <= 0) {
-        return (0);
+        return 0;
       }
       n = 0;
     }
   }
   if (n > 0) {
     if (BIO_write(bp, buf, n) <= 0) {
-      return (0);
+      return 0;
     }
   }
-  return (1);
+  return 1;
 }
 
 int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm) {
@@ -468,7 +468,7 @@
     return ASN1_GENERALIZEDTIME_print(bp, tm);
   }
   BIO_write(bp, "Bad time value", 14);
-  return (0);
+  return 0;
 }
 
 static const char *const mon[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
@@ -521,13 +521,13 @@
 
   if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s", mon[M - 1], d, h, m, s,
                  f_len, f, y, (gmt) ? " GMT" : "") <= 0) {
-    return (0);
+    return 0;
   } else {
-    return (1);
+    return 1;
   }
 err:
   BIO_write(bp, "Bad time value", 14);
-  return (0);
+  return 0;
 }
 
 // consume_two_digits is a helper function for ASN1_UTCTIME_print. If |*v|,
diff --git a/crypto/asn1/a_utctm.c b/crypto/asn1/a_utctm.c
index c0cc2f9..159a0ea 100644
--- a/crypto/asn1/a_utctm.c
+++ b/crypto/asn1/a_utctm.c
@@ -93,9 +93,9 @@
       }
       s->type = V_ASN1_UTCTIME;
     }
-    return (1);
+    return 1;
   } else {
-    return (0);
+    return 0;
   }
 }
 
@@ -152,7 +152,7 @@
                ts->tm_sec);
   s->length = strlen(p);
   s->type = V_ASN1_UTCTIME;
-  return (s);
+  return s;
 err:
   if (free_s && s) {
     ASN1_UTCTIME_free(s);
diff --git a/crypto/asn1/asn1_lib.c b/crypto/asn1/asn1_lib.c
index 6fbeb56..98061db 100644
--- a/crypto/asn1/asn1_lib.c
+++ b/crypto/asn1/asn1_lib.c
@@ -277,7 +277,7 @@
 
   if (len < 0) {
     if (data == NULL) {
-      return (0);
+      return 0;
     } else {
       len = strlen(data);
     }
@@ -293,7 +293,7 @@
     if (str->data == NULL) {
       OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
       str->data = c;
-      return (0);
+      return 0;
     }
   }
   str->length = len;
@@ -302,7 +302,7 @@
     // an allowance for strings :-)
     str->data[len] = '\0';
   }
-  return (1);
+  return 1;
 }
 
 void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len) {
@@ -321,13 +321,13 @@
   ret = (ASN1_STRING *)OPENSSL_malloc(sizeof(ASN1_STRING));
   if (ret == NULL) {
     OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
-    return (NULL);
+    return NULL;
   }
   ret->length = 0;
   ret->type = type;
   ret->data = NULL;
   ret->flags = 0;
-  return (ret);
+  return ret;
 }
 
 void ASN1_STRING_free(ASN1_STRING *str) {
diff --git a/crypto/asn1/f_int.c b/crypto/asn1/f_int.c
index 84bf667..047fcac 100644
--- a/crypto/asn1/f_int.c
+++ b/crypto/asn1/f_int.c
@@ -64,7 +64,7 @@
   char buf[2];
 
   if (a == NULL) {
-    return (0);
+    return 0;
   }
 
   if (a->type & V_ASN1_NEG) {
@@ -95,9 +95,9 @@
       n += 2;
     }
   }
-  return (n);
+  return n;
 err:
-  return (-1);
+  return -1;
 }
 
 int i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a) {
diff --git a/crypto/asn1/f_string.c b/crypto/asn1/f_string.c
index d0fca61..4bc8110 100644
--- a/crypto/asn1/f_string.c
+++ b/crypto/asn1/f_string.c
@@ -64,7 +64,7 @@
   char buf[2];
 
   if (a == NULL) {
-    return (0);
+    return 0;
   }
 
   if (a->length == 0) {
@@ -88,7 +88,7 @@
       n += 2;
     }
   }
-  return (n);
+  return n;
 err:
-  return (-1);
+  return -1;
 }