UIO userspace. Small bugfix.

diff --git a/src/uio/mf624/userspace/test_application/main.c b/src/uio/mf624/userspace/test_application/main.c
index d4a7150ad4bb238ff316d3f4489a487e36a3a4a2..7b6274406a2f3426f7435ed5fd1c2bd6d7d3f179 100755 (executable)
--- a/src/uio/mf624/userspace/test_application/main.c
+++ b/src/uio/mf624/userspace/test_application/main.c
@@ -424,6 +424,10 @@ int main(int argc, char* argv[])
        strncat(buff, argv[1], min(strlen(argv[1]), 8));
 
        device_fd = open_device(buff);
+       if (device_fd < 0) {
+               printf("%s does not exist!\n", argv[1]);
+               return 2;
+       }
        mmap_regions(device_fd, argv[1]);
 
        if (device_fd != -1) {