All of lore.kernel.org
 help / color / mirror / Atom feed
From: Moritz Fischer <mdf@kernel.org>
To: gregkh@linuxfoundation.org
Cc: linux-fpga@vger.kernel.org, Moritz Fischer <mdf@kernel.org>,
	Russ Weight <russell.h.weight@intel.com>,
	Xu Yilun <yilun.xu@intel.com>
Subject: [PATCH 8/8] fpga: region: Use standard dev_release for class driver
Date: Mon, 14 Jun 2021 10:09:09 -0700	[thread overview]
Message-ID: <20210614170909.232415-9-mdf@kernel.org> (raw)
In-Reply-To: <20210614170909.232415-1-mdf@kernel.org>

From: Russ Weight <russell.h.weight@intel.com>

The FPGA region class driver data structure is being treated as a managed
resource instead of using standard dev_release call-back to release the
class data structure. This change populates the class.dev_release function
and changes the fpga_region_free() function to call put_device().
It also changes fpga_region_unregister() to call device_del() instead
of device_unregister().

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
---
 drivers/fpga/fpga-region.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
index 4d60d643cada..bdc15fab60c0 100644
--- a/drivers/fpga/fpga-region.c
+++ b/drivers/fpga/fpga-region.c
@@ -204,8 +204,10 @@ struct fpga_region
 		return NULL;
 
 	id = ida_simple_get(&fpga_region_ida, 0, 0, GFP_KERNEL);
-	if (id < 0)
-		goto err_free;
+	if (id < 0) {
+		kfree(region);
+		return NULL;
+	}
 
 	region->mgr = mgr;
 	region->get_bridges = get_bridges;
@@ -219,17 +221,12 @@ struct fpga_region
 	region->dev.id = id;
 
 	ret = dev_set_name(&region->dev, "region%d", id);
-	if (ret)
-		goto err_remove;
+	if (ret) {
+		put_device(&region->dev);
+		return NULL;
+	}
 
 	return region;
-
-err_remove:
-	ida_simple_remove(&fpga_region_ida, id);
-err_free:
-	kfree(region);
-
-	return NULL;
 }
 EXPORT_SYMBOL_GPL(fpga_region_create);
 
@@ -239,8 +236,7 @@ EXPORT_SYMBOL_GPL(fpga_region_create);
  */
 void fpga_region_free(struct fpga_region *region)
 {
-	ida_simple_remove(&fpga_region_ida, region->dev.id);
-	kfree(region);
+	put_device(&region->dev);
 }
 EXPORT_SYMBOL_GPL(fpga_region_free);
 
@@ -310,12 +306,16 @@ EXPORT_SYMBOL_GPL(fpga_region_register);
  */
 void fpga_region_unregister(struct fpga_region *region)
 {
-	device_unregister(&region->dev);
+	device_del(&region->dev);
 }
 EXPORT_SYMBOL_GPL(fpga_region_unregister);
 
 static void fpga_region_dev_release(struct device *dev)
 {
+	struct fpga_region *region = to_fpga_region(dev);
+
+	ida_simple_remove(&fpga_region_ida, region->dev.id);
+	kfree(region);
 }
 
 /**
-- 
2.31.1


  parent reply	other threads:[~2021-06-14 17:09 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-14 17:09 [PATCH 0/8] FPGA Manager devres cleanup Moritz Fischer
2021-06-14 17:09 ` [PATCH 1/8] fpga: altera-pr-ip: Remove function alt_pr_unregister Moritz Fischer
2021-06-14 17:09 ` [PATCH 2/8] fpga: stratix10-soc: Add missing fpga_mgr_free() call Moritz Fischer
2021-06-14 17:30   ` Greg KH
2021-06-14 17:38     ` Russ Weight
2021-06-15  7:16       ` Greg KH
2021-06-14 17:40     ` Moritz Fischer
2021-06-15  7:28       ` Greg KH
2021-06-14 17:09 ` [PATCH 3/8] fpga: mgr: Rename dev to parent for parent device Moritz Fischer
2021-06-14 19:37   ` Tom Rix
2021-06-14 17:09 ` [PATCH 4/8] fpga: bridge: " Moritz Fischer
2021-06-14 17:09 ` [PATCH 5/8] fpga: region: " Moritz Fischer
2021-06-14 17:09 ` [PATCH 6/8] fpga: mgr: Use standard dev_release for class driver Moritz Fischer
2021-06-15  7:25   ` Greg KH
2021-06-15 16:00     ` Russ Weight
2021-06-14 17:09 ` [PATCH 7/8] fpga: bridge: " Moritz Fischer
2021-06-15  7:26   ` Greg KH
2021-06-14 17:09 ` Moritz Fischer [this message]
2021-06-15  7:27   ` [PATCH 8/8] fpga: region: " Greg KH
2021-06-15  7:30 ` [PATCH 0/8] FPGA Manager devres cleanup Greg KH

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210614170909.232415-9-mdf@kernel.org \
    --to=mdf@kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-fpga@vger.kernel.org \
    --cc=russell.h.weight@intel.com \
    --cc=yilun.xu@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.