fdtgerp

u-boot-tree/tools/fdtgrep.c

-// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013, Google Inc.
  * Written by Simon Glass <sjg@chromium.org>
  *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
  * Perform a grep of an FDT either displaying the source subset or producing
  * a new .dtb subset which can be used as required.
  */
@@ -133,11 +134,11 @@ static int value_add(struct display_info *disp, struct value_node **headp,
 	}
 
 	str = strdup(str);
-	if (!str)
-		goto err_mem;
 	node = malloc(sizeof(*node));
-	if (!node)
-		goto err_mem;
+	if (!str || !node) {
+		fprintf(stderr, "Out of memory\n");
+		return -1;
+	}
 	node->next = *headp;
 	node->type = type;
 	node->include = include;
@@ -145,9 +146,6 @@ static int value_add(struct display_info *disp, struct value_node **headp,
 	*headp = node;
 
 	return 0;
-err_mem:
-	fprintf(stderr, "Out of memory\n");
-	return -1;
 }
 
 static bool util_is_printable_string(const void *data, int len)
@@ -776,7 +774,7 @@ char *utilfdt_read(const char *filename)
  */
 static int do_fdtgrep(struct display_info *disp, const char *filename)
 {
-	struct fdt_region *region = NULL;
+	struct fdt_region *region;
 	int max_regions;
 	int count = 100;
 	char path[1024];
@@ -804,7 +802,7 @@ static int do_fdtgrep(struct display_info *disp, const char *filename)
 	 * The first pass will count the regions, but if it is too many,
 	 * we do another pass to actually record them.
 	 */
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < 3; i++) {
 		region = malloc(count * sizeof(struct fdt_region));
 		if (!region) {
 			fprintf(stderr, "Out of memory for %d regions\n",
@@ -818,14 +816,11 @@ static int do_fdtgrep(struct display_info *disp, const char *filename)
 				disp->flags);
 		if (count < 0) {
 			report_error("fdt_find_regions", count);
-			free(region);
 			return -1;
 		}
 		if (count <= max_regions)
 			break;
 		free(region);
-		fprintf(stderr, "Internal error with fdtgrep_find_region)(\n");
-		return -1;
 	}
 
 	/* Optionally print a list of regions */