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-rw-r--r--networking/ifupdown.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index bf88b1c19..2f3dd1d7b 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -573,8 +573,10 @@ static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
int result;
- result = execute("kill "
- "`cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
+ result = execute(
+ "test -f /var/run/udhcpc.%iface%.pid && "
+ "kill `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null",
+ ifd, exec);
/* Also bring the hardware interface down since
killing the dhcp client alone doesn't do it.
This enables consecutive ifup->ifdown->ifup */