Functional host device support in Linux kernel module for both busywait and select

[palacios.git] / linux_usr / v3_user_host_dev.c

diff --git a/linux_usr/v3_user_host_dev.c b/linux_usr/v3_user_host_dev.c
index 709db76..6996bfa 100644 (file)
--- a/linux_usr/v3_user_host_dev.c
+++ b/linux_usr/v3_user_host_dev.c
@@ -55,7 +55,11 @@ int v3_user_host_dev_pull_request(int devfd, struct palacios_host_dev_host_reque
        return -1;
     } else {
        struct palacios_host_dev_host_request_response *r = malloc(len);
-       
+
+       if (!r) { 
+           return -1;
+       }
+
        rc=ioctl(devfd, V3_HOST_DEV_HOST_REQUEST_PULL_IOCTL,r);
        
        if (rc<=0) {