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-rw-r--r--src/svm/svm_fifo.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index b0d38ed4f0a..07614b4dac9 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -88,7 +88,7 @@ typedef struct _svm_fifo
u32 ooos_newest; /**< Last segment to have been updated */
struct _svm_fifo *next; /**< next in freelist/active chain */
struct _svm_fifo *prev; /**< prev in active chain */
- u8 n_subscribers;
+ volatile u8 n_subscribers;
u8 subscribers[SVM_FIFO_MAX_EVT_SUBSCRIBERS];
#if SVM_FIFO_TRACE