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-rw-r--r--sys/dev/acpica/acpi_cmbat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/acpica/acpi_cmbat.c b/sys/dev/acpica/acpi_cmbat.c
index a0c0feb..4c26305 100644
--- a/sys/dev/acpica/acpi_cmbat.c
+++ b/sys/dev/acpica/acpi_cmbat.c
@@ -93,7 +93,7 @@ static int acpi_cmbat_units = 0;
default: \
goto label; \
} \
- dest[length-1] = '\0'; \
+ dest[sizeof(dest)-1] = '\0'; \
} while(0)
static void
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