Add a new member, pdev_name, to the structure dfl_feature_dev_data that
holds the platform device name for convenience. A subsequent commit will
completely destroy the platform device during port release, after which
fdata->dev is unavailable, while fdata itself remains available.
Signed-off-by: Peter Colberg <peter.colberg@xxxxxxxxx>
Reviewed-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
Reviewed-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@xxxxxxxxxxxxxxx>
Acked-by: Xu Yilun <yilun.xu@xxxxxxxxx>
---
Changes since v4:
- No changes.
Changes since v3:
- New patch extracted from last patch of v3 series.
---
drivers/fpga/dfl.c | 3 ++-
drivers/fpga/dfl.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index 5e9052b98c4a..c8e4b977a233 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -160,7 +160,7 @@ struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct dfl_feature_dev_data *fda
list_for_each_entry(ops, &dfl_port_ops_list, node) {
/* match port_ops using the name of platform device */
- if (!strcmp(fdata->dev->name, ops->name)) {
+ if (!strcmp(fdata->pdev_name, ops->name)) {
if (!try_module_get(ops->owner))
ops = NULL;
goto done;
@@ -768,6 +768,7 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo)
fdata->dev = fdev;
fdata->type = type;
+ fdata->pdev_name = dfl_devs[type].name;
fdata->num = binfo->feature_num;
fdata->dfl_cdev = binfo->cdev;
fdata->id = FEATURE_DEV_ID_UNUSED;
diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index 921d946e4820..cbff5d543c44 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -309,6 +309,7 @@ struct dfl_feature {
* @lock: mutex to protect feature dev data.
* @dev: ptr to the feature's platform device linked with this structure.
* @type: type of DFL FIU for the feature dev. See enum dfl_id_type.
+ * @pdev_name: platform device name for the feature dev.
* @dfl_cdev: ptr to container device.
* @id: id used for the feature device.
* @disable_count: count for port disable.
@@ -325,6 +326,7 @@ struct dfl_feature_dev_data {
struct mutex lock;
struct platform_device *dev;
enum dfl_id_type type;
+ const char *pdev_name;
struct dfl_fpga_cdev *dfl_cdev;
int id;
unsigned int disable_count;
--
2.47.0
