From: Wolfgang Mauerer <wolfgang.maue...@siemens.com>
The rework in 95278926edc559d4 misses the case that context can be NULL,
which can (and has) triggered a kernel oops. Take care of this case.
Signed-off-by: Wolfgang Mauerer <wolfgang.maue...@siemens.com>
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
ksrc/skins/rtdm/core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/ksrc/skins/rtdm/core.c b/ksrc/skins/rtdm/core.c
index 8677c47..8cccf52 100644
--- a/ksrc/skins/rtdm/core.c
+++ b/ksrc/skins/rtdm/core.c
@@ -175,7 +175,7 @@ static int cleanup_instance(struct rtdm_device *device,
xnlock_get_irqsave(&rt_fildes_lock, s);
- if (unlikely(atomic_read(&context->close_lock_count) > 1)) {
+ if (context && unlikely(atomic_read(&context->close_lock_count) > 1)) {
xnlock_put_irqrestore(&rt_fildes_lock, s);
return -EAGAIN;
}
--
1.6.0.2
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