diff --git a/board/samsung/origen/tools/mkorigenspl.c b/board/samsung/origen/tools/mkorigenspl.c
index 3ed20ef..8b0c3ac 100644
--- a/board/samsung/origen/tools/mkorigenspl.c
+++ b/board/samsung/origen/tools/mkorigenspl.c
@@ -52,7 +52,7 @@
 	}
 
 	ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
-	if (ifd < 0) {
+	if (ofd < 0) {
 		fprintf(stderr, "%s: Can't open %s: %s\n",
 			argv[0], argv[2], strerror(errno));
 		if (ifd)
diff --git a/board/samsung/smdkv310/tools/mksmdkv310spl.c b/board/samsung/smdkv310/tools/mksmdkv310spl.c
index 9a64ca6..ea61635 100644
--- a/board/samsung/smdkv310/tools/mksmdkv310spl.c
+++ b/board/samsung/smdkv310/tools/mksmdkv310spl.c
@@ -50,7 +50,7 @@
 	}
 
 	ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
-	if (ifd < 0) {
+	if (ofd < 0) {
 		fprintf(stderr, "%s: Can't open %s: %s\n",
 			argv[0], argv[2], strerror(errno));
 		if (ifd)
diff --git a/drivers/hwmon/lm81.c b/drivers/hwmon/lm81.c
index c1fc42a..bcc8d32 100644
--- a/drivers/hwmon/lm81.c
+++ b/drivers/hwmon/lm81.c
@@ -90,7 +90,7 @@
 	if (adr < 0)
 		return 1;
 	rev = dtt_read (sensor, DTT_REV);
-	if (adr < 0)
+	if (rev < 0)
 		return 1;
 
 	debug ("DTT:   Found LM81@%x Rev: %d\n", adr, rev);
diff --git a/tools/fit_check_sign.c b/tools/fit_check_sign.c
index 69e99c0..d9361b0 100644
--- a/tools/fit_check_sign.c
+++ b/tools/fit_check_sign.c
@@ -75,7 +75,7 @@
 	if (ffd < 0)
 		return EXIT_FAILURE;
 	kfd = mmap_fdt(cmdname, keyfile, 0, &key_blob, &ksbuf, false);
-	if (ffd < 0)
+	if (kfd < 0)
 		return EXIT_FAILURE;
 
 	image_set_host_blob(key_blob);
diff --git a/tools/mkexynosspl.c b/tools/mkexynosspl.c
index 32b786c..46195aa 100644
--- a/tools/mkexynosspl.c
+++ b/tools/mkexynosspl.c
@@ -110,7 +110,7 @@
 	}
 
 	ofd = open(argv[of_index], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
-	if (ifd < 0) {
+	if (ofd < 0) {
 		fprintf(stderr, "%s: Can't open %s: %s\n",
 			prog_name, argv[of_index], strerror(errno));
 		exit(EXIT_FAILURE);