[PATCH 4/4] drm/tegra: firewall: Check for is_addr_reg existence in IMM check

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From: Mikko Perttunen <mperttunen@xxxxxxxxxx>

In the IMM opcode check, don't call is_addr_reg if it's not set.

Fixes: 8cc95f3fd35e ("drm/tegra: Add job firewall")
Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
---
 drivers/gpu/drm/tegra/firewall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/tegra/firewall.c b/drivers/gpu/drm/tegra/firewall.c
index 1824d2db0e2c..d53f890fa689 100644
--- a/drivers/gpu/drm/tegra/firewall.c
+++ b/drivers/gpu/drm/tegra/firewall.c
@@ -97,6 +97,9 @@ static int fw_check_regs_imm(struct tegra_drm_firewall *fw, u32 offset)
 {
 	bool is_addr;
 
+	if (!fw->client->ops->is_addr_reg)
+		return 0;
+
 	is_addr = fw->client->ops->is_addr_reg(fw->client->base.dev, fw->class,
 					       offset);
 	if (is_addr)
-- 
2.39.0




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