zipl: Fix error handling for read

The return value is not errno.
ostreedev · Dec 14, 2023 · e9a2a2c · e9a2a2c
1 parent 876ddd3
commit e9a2a2c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/libostree/ostree-bootloader-zipl.c b/src/libostree/ostree-bootloader-zipl.c
@@ -149,8 +149,8 @@ _ostree_secure_boot_is_enabled (gboolean *out_enabled, GCancellable *cancellable
   while (*out_enabled != TRUE && max_lines > 0)
     {
       char buf[1024];
-      ssize_t len = read (fd, buf, sizeof (buf));
-      if (len == -EAGAIN)
+      ssize_t len = TEMP_FAILURE_RETRY (read (fd, buf, sizeof (buf)));
+      if (len < 0)
         break;
       *out_enabled = strstr (buf, "Secure-IPL enabled") != NULL;
       --max_lines;