For instance, if the specified path doesn't exist.
Signed-off-by: Alan Coopersmith <alan.coopersm...@oracle.com>
---
shmfd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/shmfd.c b/shmfd.c
index 45b9067..4dee9de 100644
--- a/shmfd.c
+++ b/shmfd.c
@@ -95,6 +95,10 @@ main (int argc, char **argv)
uint32_t size = WIDTH * HEIGHT * 4;
fd = make_shm(size, &addr); /* some memory */
+ if (fd < 0) {
+ perror("make_shm");
+ exit(1);
+ }
paint(addr, WIDTH, HEIGHT, 0);
printf ("painted\n");
c = xcb_connect(NULL, &screen_num);
--
1.7.9.2
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