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authorAlan Tull <atull@kernel.org>2018-05-16 18:49:57 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-25 18:23:56 +0200
commit9f368977b4589e2fe0b9d3a4cbaf11ff6a58ecf5 (patch)
tree7b2e8d00ea068aa78dc308bb9d7c8cd4d55017bf /drivers/fpga/of-fpga-region.c
parent371cd1b1fdabb33603340559049e46dfeae45b1e (diff)
downloadlinux-9f368977b4589e2fe0b9d3a4cbaf11ff6a58ecf5.tar.gz
fpga: region: change api, add fpga_region_create/free
Add fpga_region_create/free API functions.

Change fpga_region_register to take FPGA region struct as the only
parameter.  Change fpga_region_unregister to return void.

  struct fpga_region *fpga_region_create(struct device *dev,
                        struct fpga_manager *mgr,
                        int (*get_bridges)(struct fpga_region *));
  void fpga_region_free(struct fpga_region *region);
  int fpga_region_register(struct fpga_region *region);
  void fpga_region_unregister(struct fpga_region *region);

Remove groups storage from struct fpga_region, it's not
needed.  Callers can just "region->dev.groups = groups;"
after calling fpga_region_create.

Update the drivers that call fpga_region_register with the new API.

Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/of-fpga-region.c')
-rw-r--r--drivers/fpga/of-fpga-region.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index 35e7e8c4a0cb..9d681a1c5738 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -422,20 +422,15 @@ static int of_fpga_region_probe(struct platform_device *pdev)
 	if (IS_ERR(mgr))
 		return -EPROBE_DEFER;
 
-	region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);
+	region = fpga_region_create(dev, mgr, of_fpga_region_get_bridges);
 	if (!region) {
 		ret = -ENOMEM;
 		goto eprobe_mgr_put;
 	}
 
-	region->mgr = mgr;
-
-	/* Specify how to get bridges for this type of region. */
-	region->get_bridges = of_fpga_region_get_bridges;
-
-	ret = fpga_region_register(dev, region);
+	ret = fpga_region_register(region);
 	if (ret)
-		goto eprobe_mgr_put;
+		goto eprobe_free;
 
 	of_platform_populate(np, fpga_region_of_match, NULL, &region->dev);
 	dev_set_drvdata(dev, region);
@@ -444,6 +439,8 @@ static int of_fpga_region_probe(struct platform_device *pdev)
 
 	return 0;
 
+eprobe_free:
+	fpga_region_free(region);
 eprobe_mgr_put:
 	fpga_mgr_put(mgr);
 	return ret;