[PATCH] Option minval should be signed

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/parse.c b/parse.c
index 1cc55dc..abe0653 100644
--- a/parse.c
+++ b/parse.c
@@ -48,7 +48,7 @@
 /*
  * convert string into decimal value, noting any size suffix
  */
-static int str_to_decimal(const char *str, unsigned long long *val, int kilo)
+static int str_to_decimal(const char *str, long long *val, int kilo)
 {
 	int len;
 
@@ -68,12 +68,12 @@
 	return 0;
 }
 
-static int check_str_bytes(const char *p, unsigned long long *val)
+static int check_str_bytes(const char *p, long long *val)
 {
 	return str_to_decimal(p, val, 1);
 }
 
-static int check_str_time(const char *p, unsigned long long *val)
+static int check_str_time(const char *p, long long *val)
 {
 	return str_to_decimal(p, val, 0);
 }
@@ -96,7 +96,7 @@
 	*(s + 1) = '\0';
 }
 
-static int check_range_bytes(const char *str, unsigned long *val)
+static int check_range_bytes(const char *str, long *val)
 {
 	char suffix;
 
@@ -114,7 +114,7 @@
 	return 1;
 }
 
-static int check_int(const char *p, unsigned int *val)
+static int check_int(const char *p, int *val)
 {
 	if (!strlen(p))
 		return 1;
@@ -148,9 +148,9 @@
 static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 			   int first, int more)
 {
-	unsigned int il, *ilp;
-	unsigned long long ull, *ullp;
-	unsigned long ul1, ul2;
+	int il, *ilp;
+	long long ull, *ullp;
+	long ul1, ul2;
 	char **cp;
 	int ret = 0, is_time = 0;
 
@@ -252,7 +252,7 @@
 		if (ret)
 			break;
 
-		if (o->maxval && il > o->maxval)
+		if (o->maxval && il > (int) o->maxval)
 			il = o->maxval;
 		if (o->minval && il < o->minval)
 			il = o->minval;
diff --git a/parse.h b/parse.h
index 414f77c..2d4b55e 100644
--- a/parse.h
+++ b/parse.h
@@ -27,7 +27,7 @@
 	unsigned int off3;
 	unsigned int off4;
 	unsigned int maxval;		/* max and min value */
-	unsigned int minval;
+	int minval;
 	void *cb;			/* callback */
 	const char *help;		/* help text for option */
 	const char *def;		/* default setting */
@@ -49,8 +49,8 @@
  * Handlers for the options
  */
 typedef int (fio_opt_str_fn)(void *, const char *);
-typedef int (fio_opt_str_val_fn)(void *, unsigned long long *);
-typedef int (fio_opt_int_fn)(void *, unsigned int *);
+typedef int (fio_opt_str_val_fn)(void *, long long *);
+typedef int (fio_opt_int_fn)(void *, int *);
 typedef int (fio_opt_str_set_fn)(void *);
 
 #define td_var(start, offset)	((void *) start + (offset))