[PATCH 3/8] lib: utils/irqchip: Fix context_map init in irqchip_plic_update_context_map()

[Anup Patel]

The context_map[][] elements should be initialized with negative
value so that context_map does not point to anything for non-existent
PLIC contexts.

Fixes: 69448a079065 ("lib: utils/irqchip: plic: Provide a hartindex to context map")
Signed-off-by: Anup Patel <anup.patel at oss.qualcomm.com>
---
 lib/utils/irqchip/fdt_irqchip_plic.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/utils/irqchip/fdt_irqchip_plic.c b/lib/utils/irqchip/fdt_irqchip_plic.c
index 65a9de15..61c68ac9 100644
--- a/lib/utils/irqchip/fdt_irqchip_plic.c
+++ b/lib/utils/irqchip/fdt_irqchip_plic.c
@@ -24,6 +24,11 @@ static int irqchip_plic_update_context_map(const void *fdt, int nodeoff,
 	u32 phandle, hwirq, hartid, hartindex;
 	int i, err, count, cpu_offset, cpu_intc_offset;
 
+	for (i = 0; i < sbi_hart_count(); i++) {
+		pd->context_map[i][PLIC_M_CONTEXT] = -1;
+		pd->context_map[i][PLIC_S_CONTEXT] = -1;
+	}
+
 	val = fdt_getprop(fdt, nodeoff, "interrupts-extended", &count);
 	if (!val || count < sizeof(fdt32_t))
 		return SBI_EINVAL;
-- 
2.43.0