Signed-off-by: Monk Liu <Monk.Liu@xxxxxxx>
---
src/lib/umr_read_pm4_stream.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/lib/umr_read_pm4_stream.c b/src/lib/umr_read_pm4_stream.c
index 60bea49..317b638 100644
--- a/src/lib/umr_read_pm4_stream.c
+++ b/src/lib/umr_read_pm4_stream.c
@@ -325,6 +325,9 @@ int umr_pm4_decode_ring_is_halted(struct umr_asic *asic, char *ringname)
// since the kernel returned values might be unwrapped.
for (n = 0; n < 100; n++) {
ringdata = umr_read_ring_data(asic, ringname, &ringsize);
+ if (!ringdata)
+ return 1;
+
ringsize /= 4;
ringdata[0] %= ringsize;
ringdata[1] %= ringsize;
--
2.7.4
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