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-rw-r--r--src/core/bus-policy.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/core/bus-policy.c b/src/core/bus-policy.c
index 064eee1c8a..a6a8fcd4d3 100644
--- a/src/core/bus-policy.c
+++ b/src/core/bus-policy.c
@@ -150,8 +150,11 @@ int bus_kernel_make_starter(
hello->attach_flags_send = _KDBUS_ATTACH_ANY;
hello->attach_flags_recv = _KDBUS_ATTACH_ANY;
- if (ioctl(fd, KDBUS_CMD_HELLO, hello) < 0)
+ if (ioctl(fd, KDBUS_CMD_HELLO, hello) < 0) {
+ if (errno == ENOTTY) /* Major API change */
+ return -ESOCKTNOSUPPORT;
return -errno;
+ }
/* not interested in any output values */
cmd_free.offset = hello->offset;
@@ -160,7 +163,7 @@ int bus_kernel_make_starter(
/* The higher 32bit of the bus_flags fields are considered
* 'incompatible flags'. Refuse them all for now. */
if (hello->bus_flags > 0xFFFFFFFFULL)
- return -EOPNOTSUPP;
+ return -ESOCKTNOSUPPORT;
return fd;
}