1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/soc/fsl/qbman/bman_portal.c b/drivers/soc/fsl/qbman/bman_portal.c
index 2c95cf59f3e7..cf4f10d6f590 100644
--- a/drivers/soc/fsl/qbman/bman_portal.c
+++ b/drivers/soc/fsl/qbman/bman_portal.c
@@ -32,6 +32,7 @@
 
 static struct bman_portal *affine_bportals[NR_CPUS];
 static struct cpumask portal_cpus;
+static int __bman_portals_probed;
 /* protect bman global registers and global data shared among portals */
 static DEFINE_SPINLOCK(bman_lock);
 
@@ -87,6 +88,12 @@ static int bman_online_cpu(unsigned int cpu)
 	return 0;
 }
 
+int bman_portals_probed(void)
+{
+	return __bman_portals_probed;
+}
+EXPORT_SYMBOL_GPL(bman_portals_probed);
+
 static int bman_portal_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -104,8 +111,10 @@ static int bman_portal_probe(struct platform_device *pdev)
 	}
 
 	pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
-	if (!pcfg)
+	if (!pcfg) {
+		__bman_portals_probed = -1;
 		return -ENOMEM;
+	}
 
 	pcfg->dev = dev;
 
@@ -113,14 +122,14 @@ static int bman_portal_probe(struct platform_device *pdev)
 					     DPAA_PORTAL_CE);
 	if (!addr_phys[0]) {
 		dev_err(dev, "Can't get %pOF property 'reg::CE'\n", node);
-		return -ENXIO;
+		goto err_ioremap1;
 	}
 
 	addr_phys[1] = platform_get_resource(pdev, IORESOURCE_MEM,
 					     DPAA_PORTAL_CI);
 	if (!addr_phys[1]) {
 		dev_err(dev, "Can't get %pOF property 'reg::CI'\n", node);
-		return -ENXIO;
+		goto err_ioremap1;
 	}
 
 	pcfg->cpu = -1;
@@ -128,7 +137,7 @@ static int bman_portal_probe(struct platform_device *pdev)
 	irq = platform_get_irq(pdev, 0);
 	if (irq <= 0) {
 		dev_err(dev, "Can't get %pOF IRQ'\n", node);
-		return -ENXIO;
+		goto err_ioremap1;
 	}
 	pcfg->irq = irq;
 
@@ -150,6 +159,7 @@ static int bman_portal_probe(struct platform_device *pdev)
 	spin_lock(&bman_lock);
 	cpu = cpumask_next_zero(-1, &portal_cpus);
 	if (cpu >= nr_cpu_ids) {
+		__bman_portals_probed = 1;
 		/* unassigned portal, skip init */
 		spin_unlock(&bman_lock);
 		return 0;
@@ -175,6 +185,8 @@ err_portal_init:
 err_ioremap2:
 	memunmap(pcfg->addr_virt_ce);
 err_ioremap1:
+	 __bman_portals_probed = -1;
+
 	return -ENXIO;
 }