X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=tools%2Fmkenvimage.c;h=75967d0c2d59667da31ada29bc3d7abb3e3b5acc;hb=3aba3fd65490eff5305160e92937dc5592ab9bfb;hp=8eee72e2572e321bbcf70d516d884708724f7fa4;hpb=1d2f74690cace803844bce198a6d5fa1b6cd11f9;p=u-boot

diff --git a/tools/mkenvimage.c b/tools/mkenvimage.c
index 8eee72e257..75967d0c2d 100644
--- a/tools/mkenvimage.c
+++ b/tools/mkenvimage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2011 Free Electrons
  * David Wagner <david.wagner@free-electrons.com>
@@ -5,8 +6,6 @@
  * Inspired from envcrc.c:
  * (C) Copyright 2001
  * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <errno.h>
@@ -162,13 +161,13 @@ int main(int argc, char **argv)
 		txt_fd = STDIN_FILENO;
 
 		do {
-			filebuf = realloc(filebuf, readlen);
+			filebuf = realloc(filebuf, filesize + readlen);
 			if (!filebuf) {
 				fprintf(stderr, "Can't realloc memory for the input file buffer\n");
 				return EXIT_FAILURE;
 			}
 			readbytes = read(txt_fd, filebuf + filesize, readlen);
-			if (errno) {
+			if (readbytes < 0) {
 				fprintf(stderr, "Error while reading stdin: %s\n",
 						strerror(errno));
 				return EXIT_FAILURE;