From: Cornelia Huck <[email protected]>
Signed-off-by: Cornelia Huck <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
---
drivers/s390/cio/cio_debug.h | 2 ++
1 file changed, 2 insertions(+)
Index: quilt-2.6/drivers/s390/cio/cio_debug.h
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/cio_debug.h
+++ quilt-2.6/drivers/s390/cio/cio_debug.h
@@ -23,6 +23,8 @@ extern debug_info_t *cio_debug_crw_id;
static inline void
CIO_HEX_EVENT(int level, void *data, int length)
{
+ if (unlikely(!cio_debug_trace_id))
+ return;
while (length > 0) {
debug_event(cio_debug_trace_id, level, data, length);
length -= cio_debug_trace_id->buf_size;
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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