Bug #23590280 NO WARNING WHEN REDUCING INNODB_BUFFER_POOL_SIZE INSIZE

		THE FIRST CHUNK

PROBLEM

It is a post-push problem. innodb_buffer_pool_size_validate() function was
supposed to return updated buffer pool value to the caller function,
but due to a check introduced by my fix, it returned before updating
the buffer pool value.

FIX

Ensured that the proper updated value of buffer pool size returns
to the caller function.

Reviewed by: Aditya
RB: 17812

Author: sachinagarwal1111

storage/innobase/handler/ha_innodb.cc

@@ -21223,17 +21223,17 @@ innodb_buffer_pool_size_validate(
 		return(1);
 	}
 
+	ulint	requested_buf_pool_size
+		= buf_pool_size_align(static_cast<ulint>(intbuf));
+
+	*static_cast<longlong*>(save) = requested_buf_pool_size;
+
 	if (srv_buf_pool_size == static_cast<ulint>(intbuf)) {
 		buf_pool_mutex_exit_all();
 		/* nothing to do */
 		return(0);
 	}
 
-	ulint	requested_buf_pool_size
-		= buf_pool_size_align(static_cast<ulint>(intbuf));
-
-	*static_cast<longlong*>(save) = requested_buf_pool_size;
-
 	if (srv_buf_pool_size == requested_buf_pool_size) {
 		buf_pool_mutex_exit_all();
 		push_warning_printf(thd, Sql_condition::SL_WARNING,