fpga: mgr: add devm_fpga_mgr_create

Add devm_fpga_mgr_create() which is the managed
version of fpga_mgr_create().

Change current FPGA manager drivers to use
devm_fpga_mgr_create()

Signed-off-by: Alan Tull <atull@kernel.org>
Suggested-by: Federico Vaga <federico.vaga@cern.ch>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 7 deletions

diff --git a/Documentation/driver-api/fpga/fpga-mgr.rst b/Documentation/driver-api/fpga/fpga-mgr.rst
index 82b6dbbd31cd..db8885efbc22 100644
--- a/Documentation/driver-api/fpga/fpga-mgr.rst
+++ b/Documentation/driver-api/fpga/fpga-mgr.rst
@@ -49,18 +49,14 @@ probe function calls fpga_mgr_register(), such as::
                  * them in priv
                  */
 
-                mgr = fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
-                                      &socfpga_fpga_ops, priv);
+                mgr = devm_fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
+                                           &socfpga_fpga_ops, priv);
                 if (!mgr)
                         return -ENOMEM;
 
                 platform_set_drvdata(pdev, mgr);
 
-                ret = fpga_mgr_register(mgr);
-                if (ret)
-                        fpga_mgr_free(mgr);
-
-                return ret;
+                return fpga_mgr_register(mgr);
         }
 
         static int socfpga_fpga_remove(struct platform_device *pdev)
@@ -170,6 +166,9 @@ API for implementing a new FPGA Manager driver
    :functions: fpga_manager_ops
 
 .. kernel-doc:: drivers/fpga/fpga-mgr.c
+   :functions: devm_fpga_mgr_create
+
+.. kernel-doc:: drivers/fpga/fpga-mgr.c
    :functions: fpga_mgr_create
 
 .. kernel-doc:: drivers/fpga/fpga-mgr.c