linux-kernel - [PATCH v2 1/2] media: intel/ipu6: Move isys_remove() close to isys

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Message-ID: <15a056198775689cb533a7b0ea7e100559a2465d.1716710255.git.christophe.jaillet@wanadoo.fr>
Date: Sun, 26 May 2024 09:59:56 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: sakari.ailus@...ux.intel.com,
	bingbu.cao@...el.com,
	tian.shu.qiu@...el.com,
	mchehab@...nel.org,
	hverkuil-cisco@...all.nl,
	hdegoede@...hat.com
Cc: linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH v2 1/2] media: intel/ipu6: Move isys_remove() close to isys_probe()

In preparation to fixing a leak in isys_probe(), move isys_remove().
The fix will introduce a new function that will also be called from
isys_remove(). The code needs to be rearranged to avoid a forward
declaration.

Having the .remove function close to the .probe function is also more
standard.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Changes in v2:
  - new patch
---
 drivers/media/pci/intel/ipu6/ipu6-isys.c | 70 ++++++++++++------------
 1 file changed, 35 insertions(+), 35 deletions(-)

diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys.c b/drivers/media/pci/intel/ipu6/ipu6-isys.c
index 5992138c7290..7ce2047a09b5 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-isys.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys.c
@@ -925,41 +925,6 @@ static const struct dev_pm_ops isys_pm_ops = {
 	.resume = isys_resume,
 };
 
-static void isys_remove(struct auxiliary_device *auxdev)
-{
-	struct ipu6_bus_device *adev = auxdev_to_adev(auxdev);
-	struct ipu6_isys *isys = dev_get_drvdata(&auxdev->dev);
-	struct ipu6_device *isp = adev->isp;
-	struct isys_fw_msgs *fwmsg, *safe;
-	unsigned int i;
-
-	list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist, head)
-		dma_free_attrs(&auxdev->dev, sizeof(struct isys_fw_msgs),
-			       fwmsg, fwmsg->dma_addr, 0);
-
-	list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist_fw, head)
-		dma_free_attrs(&auxdev->dev, sizeof(struct isys_fw_msgs),
-			       fwmsg, fwmsg->dma_addr, 0);
-
-	isys_unregister_devices(isys);
-	isys_notifier_cleanup(isys);
-
-	cpu_latency_qos_remove_request(&isys->pm_qos);
-
-	if (!isp->secure_mode) {
-		ipu6_cpd_free_pkg_dir(adev);
-		ipu6_buttress_unmap_fw_image(adev, &adev->fw_sgt);
-		release_firmware(adev->fw);
-	}
-
-	for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++)
-		mutex_destroy(&isys->streams[i].mutex);
-
-	isys_iwake_watermark_cleanup(isys);
-	mutex_destroy(&isys->stream_mutex);
-	mutex_destroy(&isys->mutex);
-}
-
 static int alloc_fw_msg_bufs(struct ipu6_isys *isys, int amount)
 {
 	struct device *dev = &isys->adev->auxdev.dev;
@@ -1167,6 +1132,41 @@ static int isys_probe(struct auxiliary_device *auxdev,
 	return ret;
 }
 
+static void isys_remove(struct auxiliary_device *auxdev)
+{
+	struct ipu6_bus_device *adev = auxdev_to_adev(auxdev);
+	struct ipu6_isys *isys = dev_get_drvdata(&auxdev->dev);
+	struct ipu6_device *isp = adev->isp;
+	struct isys_fw_msgs *fwmsg, *safe;
+	unsigned int i;
+
+	list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist, head)
+		dma_free_attrs(&auxdev->dev, sizeof(struct isys_fw_msgs),
+			       fwmsg, fwmsg->dma_addr, 0);
+
+	list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist_fw, head)
+		dma_free_attrs(&auxdev->dev, sizeof(struct isys_fw_msgs),
+			       fwmsg, fwmsg->dma_addr, 0);
+
+	isys_unregister_devices(isys);
+	isys_notifier_cleanup(isys);
+
+	cpu_latency_qos_remove_request(&isys->pm_qos);
+
+	if (!isp->secure_mode) {
+		ipu6_cpd_free_pkg_dir(adev);
+		ipu6_buttress_unmap_fw_image(adev, &adev->fw_sgt);
+		release_firmware(adev->fw);
+	}
+
+	for (i = 0; i < IPU6_ISYS_MAX_STREAMS; i++)
+		mutex_destroy(&isys->streams[i].mutex);
+
+	isys_iwake_watermark_cleanup(isys);
+	mutex_destroy(&isys->stream_mutex);
+	mutex_destroy(&isys->mutex);
+}
+
 struct fwmsg {
 	int type;
 	char *msg;
-- 
2.45.1