Re: [PATCH 1/5] arm-cci: Rearrange code for splitting PMU vs driver code

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On 02/03/15 11:29, Suzuki K. Poulose wrote:
From: "Suzuki K. Poulose" <suzuki.poulose@xxxxxxx>

No functional changes, only code re-arrangements for easier split of the
PMU code vs low level driver code. Extracts the port handling code
to cci_probe_ports().

Signed-off-by: Suzuki K. Poulose <suzuki.poulose@xxxxxxx>
---
  drivers/bus/arm-cci.c |  330 +++++++++++++++++++++++++------------------------
  1 file changed, 168 insertions(+), 162 deletions(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 84fd660..f27cf56 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c

[...]

@@ -1395,11 +1412,36 @@ static int cci_probe(void)
  	sync_cache_w(&cpu_port);
  	__sync_cache_range_w(ports, sizeof(*ports) * nb_cci_ports);
  	pr_info("ARM CCI driver probed\n");
+
  	return 0;
+}
+
+static int cci_probe(void)
+{
+	int ret;
+	struct device_node *np;
+	struct resource res;
+
+	np = of_find_matching_node(NULL, arm_cci_matches);
+	if (!np)
+		return -ENODEV;

-memalloc_err:
+	if (!of_device_is_available(np))
+		return -ENODEV;
+
+	ret = of_address_to_resource(np, 0, &res);
+	if (!ret) {
+		cci_ctrl_base = ioremap(res.start, resource_size(&res));
+		cci_ctrl_phys =	res.start;
+	}
+	if (ret || !cci_ctrl_base) {
+		WARN(1, "unable to ioremap CCI ctrl\n");
+		ret = -ENXIO;
+		goto out;

IMO you can return directly here and get rid of this goto as nothing is
done there.

Regards,
Sudeep

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