dma: use ERROR_INT()

The first in a series excising the use of the "return -errno" idiom. This is a
non-standard usage, and in userspace, we have "errno" for delivering side-band
error values. As there have been multiple bugs from not using standard error
return methods like -1+errno or NULL+errno, let's do that.

Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/pci.c b/lib/pci.c
index 39470d9..54e90f9 100644
--- a/lib/pci.c
+++ b/lib/pci.c
@@ -33,6 +33,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <sys/param.h>