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Diffstat (limited to 'os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h')
-rw-r--r--os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h b/os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h
index cf90399..a473f6c 100644
--- a/os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h
+++ b/os/hal/ports/TIVA/LLD/uDMA/tiva_udma.h
@@ -32,7 +32,7 @@
/**
* @brief CHCTL XFERSIZE helper.
*/
-#define UDMA_CHCTL_XFERSIZE(n) ((n-1) << 4)
+#define UDMA_CHCTL_XFERSIZE(n) (((n)-1) << 4)
/*===========================================================================*/
/* Driver pre-compile time settings. */