Show errno when failing to create device

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 3 insertions, 2 deletions

diff --git a/tools/evemu-device.c b/tools/evemu-device.c
index 89c9d6c..6cdb696 100644
--- a/tools/evemu-device.c
+++ b/tools/evemu-device.c
@@ -92,6 +92,7 @@ static int evemu_device(FILE *fp)
 int main(int argc, char *argv[])
 {
         FILE *fp;
+        int ret;
         if (argc < 2) {
                 fprintf(stderr, "Usage: %s <dev.prop>\n", argv[0]);
                 return -1;
@@ -101,8 +102,8 @@ int main(int argc, char *argv[])
                 fprintf(stderr, "error: could not open file\n");
                 return -1;
         }
-        if (evemu_device(fp)) {
-                fprintf(stderr, "error: could not create device\n");
+        if ((ret = evemu_device(fp))) {
+                fprintf(stderr, "error: could not create device: %d\n", ret);
                 return -1;
         }
         fclose(fp);