From: Rafael J. Wysocki <[email protected]>

Commit 5c0acf3b4f96 (driver core: Add comments about returning array
counts) forgot to update fwnode_property_read_string_array() along
the lines of device_property_read_string_array(), although it did
change the kerneldoc comment of it.  Fix that.

Signed-off-by: Rafael J. Wysocki <[email protected]>
---
 drivers/base/property.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Index: linux-pm/drivers/base/property.c
===================================================================
--- linux-pm.orig/drivers/base/property.c
+++ linux-pm/drivers/base/property.c
@@ -347,8 +347,10 @@ int fwnode_property_read_string_array(st
                                      size_t nval)
 {
        if (is_of_node(fwnode))
-               return of_property_read_string_array(of_node(fwnode), propname,
-                                                    val, nval);
+               return val ?
+                       of_property_read_string_array(of_node(fwnode), propname,
+                                                     val, nval) :
+                       of_property_count_strings(of_node(fwnode), propname);
        else if (is_acpi_node(fwnode))
                return acpi_dev_prop_read(acpi_node(fwnode), propname,
                                          DEV_PROP_STRING, val, nval);

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