staging: gasket: page table: remove unnecessary logs

Some error logs in page table handling code could only be hit in
cases of programming errors not expected in the current code base, and
aren't likely to be useful on their own.  Remove these.
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gasket/gasket_page_table.c

@@ -605,10 +605,8 @@ EXPORT_SYMBOL(gasket_page_table_is_dev_addr_bad);
 /* See gasket_page_table.h for description. */
 uint gasket_page_table_max_size(struct gasket_page_table *page_table)
 {
-	if (!page_table) {
-		gasket_nodev_error("Passed a null page table.");
+	if (!page_table)
 		return 0;
-	}
 	return page_table->config.total_entries;
 }
 EXPORT_SYMBOL(gasket_page_table_max_size);
@@ -616,11 +614,8 @@ EXPORT_SYMBOL(gasket_page_table_max_size);
 /* See gasket_page_table.h for description. */
 uint gasket_page_table_num_entries(struct gasket_page_table *pg_tbl)
 {
-	if (!pg_tbl) {
-		gasket_nodev_error("Passed a null page table.");
+	if (!pg_tbl)
 		return 0;
-	}
-
 	return pg_tbl->num_simple_entries + pg_tbl->num_extended_entries;
 }
 EXPORT_SYMBOL(gasket_page_table_num_entries);
@@ -628,11 +623,8 @@ EXPORT_SYMBOL(gasket_page_table_num_entries);
 /* See gasket_page_table.h for description. */
 uint gasket_page_table_num_simple_entries(struct gasket_page_table *pg_tbl)
 {
-	if (!pg_tbl) {
-		gasket_nodev_error("Passed a null page table.");
+	if (!pg_tbl)
 		return 0;
-	}
-
 	return pg_tbl->num_simple_entries;
 }
 EXPORT_SYMBOL(gasket_page_table_num_simple_entries);
@@ -640,11 +632,8 @@ EXPORT_SYMBOL(gasket_page_table_num_simple_entries);
 /* See gasket_page_table.h for description. */
 uint gasket_page_table_num_active_pages(struct gasket_page_table *pg_tbl)
 {
-	if (!pg_tbl) {
-		gasket_nodev_error("Passed a null page table.");
+	if (!pg_tbl)
 		return 0;
-	}
-
 	return pg_tbl->num_active_pages;
 }
 EXPORT_SYMBOL(gasket_page_table_num_active_pages);
@@ -652,10 +641,8 @@ EXPORT_SYMBOL(gasket_page_table_num_active_pages);
 /* See gasket_page_table.h */
 int gasket_page_table_system_status(struct gasket_page_table *page_table)
 {
-	if (!page_table) {
-		gasket_nodev_error("Passed a null page table.");
+	if (!page_table)
 		return GASKET_STATUS_LAMED;
-	}
 
 	if (gasket_page_table_num_entries(page_table) == 0) {
 		gasket_nodev_debug("Page table size is 0.");