3 files changed, 9 insertions, 1 deletions
diff --git a/lib/erl_interface/src/misc/ei_format.c b/lib/erl_interface/src/misc/ei_format.c
index 08235d0ebe..b35421d4b2 100644
--- a/lib/erl_interface/src/misc/ei_format.c
+++ b/lib/erl_interface/src/misc/ei_format.c
@@ -106,6 +106,8 @@ static int eiformat(const char** fmt, union arg** args, ei_x_buff* x)
     default:
 	if (isdigit((int)*p))
 	    res = pdigit(&p, x);
+	else if ((*p == '-' || *p == '+') && isdigit((int)*(p+1)))
+	    res = pdigit(&p, x);
 	else if (islower((int)*p))
 	    res = patom(&p, x);
 	else
@@ -149,6 +151,8 @@ static int pdigit(const char** fmt, ei_x_buff* x)
     double d;
     long l;
 
+    if (**fmt == '-' || **fmt == '+')
+	(*fmt)++;
     for (;;) {
 	c = *(*fmt)++;
 	if (isdigit((int)c))
diff --git a/lib/erl_interface/src/misc/ei_portio.c b/lib/erl_interface/src/misc/ei_portio.c
index c4e397f1e0..a3f6f63fff 100644
--- a/lib/erl_interface/src/misc/ei_portio.c
+++ b/lib/erl_interface/src/misc/ei_portio.c
@@ -166,6 +166,9 @@ int ei_writev_fill_t(int fd,  const  struct  iovec  *iov,  int iovcnt, unsigned
 	if (done < sum) {
 	    if (iov_base == NULL) {
 		iov_base = malloc(sizeof(struct iovec) * iovcnt);
+		if (iov_base == NULL) {
+		return -1;
+		}
 		memcpy(iov_base, iov, sizeof(struct iovec) * iovcnt);
 		current_iov = iov_base;
 	    }
diff --git a/lib/erl_interface/src/misc/ei_printterm.c b/lib/erl_interface/src/misc/ei_printterm.c
index 98473f780e..5fc6b3542c 100644
--- a/lib/erl_interface/src/misc/ei_printterm.c
+++ b/lib/erl_interface/src/misc/ei_printterm.c
@@ -253,7 +253,8 @@ static int print_term(FILE* fp, ei_x_buff* x,
             erlang_big *b;
             char *ds;
 
-            b = ei_alloc_big(n);
+            if ( (b = ei_alloc_big(n)) == NULL) goto err;
+
             if (ei_decode_big(buf, index, b) < 0) {
                 ei_free_big(b);
                 goto err;