Don't use exit status of a command directly as errno code, callers
will be confused.

Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
---
  libkmod/libkmod-module.c | 8 +++++---
  1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index 8044a8f..6031d80 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -983,11 +983,13 @@ static int command_do(struct kmod_module *mod, 
const char *type,
         if (err == -1 || WEXITSTATUS(err)) {
                 ERR(mod->ctx, "Error running %s command for %s\n",
                                                                 type, 
modname);
-               if (err != -1)
-                       err = -WEXITSTATUS(err);
+               if (err != -1) /* nonzero exit status: something bad 
happened */
+                       return -EINVAL;
+               else /* child process could not be created */
+                       return -errno;
         }

-       return err;
+       return 0;
  }

  struct probe_insert_cb {
-- 
2.24.0