irqchip/gic-v3-its: Zero command on allocation



When reusing commands from the ring buffer, it would be better
to zero them out, even if the ITS should ignore the unused
fields.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

parent 5bc13c2c

drivers/irqchip/irq-gic-v3-its.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -411,6 +411,12 @@ static struct its_cmd_block its_allocate_entry(struct its_node its)
		if (its->cmd_write == (its->cmd_base + ITS_CMD_QUEUE_NR_ENTRIES))
		its->cmd_write = its->cmd_base;

		/* Clear command */
		cmd->raw_cmd[0] = 0;
		cmd->raw_cmd[1] = 0;
		cmd->raw_cmd[2] = 0;
		cmd->raw_cmd[3] = 0;

		return cmd;
		}