lguest: Don't leak /dev/zero fd

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c
index 6ded39bfdbdb3319237337287135d7cf67af0552..686e2d435c7575a687f97e363be2eabb1ba33ccb 100644 (file)
--- a/Documentation/lguest/lguest.c
+++ b/Documentation/lguest/lguest.c
@@ -254,6 +254,7 @@ static void *map_zeroed_pages(unsigned int num)
                    PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, fd, 0);
        if (addr == MAP_FAILED)
                err(1, "Mmaping %u pages of /dev/zero", num);
+       close(fd);
 
        return addr;
 }