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Diffstat (limited to 'drivers/misc/cxl/file.c')
-rw-r--r--drivers/misc/cxl/file.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 7ccd2998be92..5cc14599837d 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -67,7 +67,13 @@ static int __afu_open(struct inode *inode, struct file *file, bool master)
spin_unlock(&adapter->afu_list_lock);
goto err_put_adapter;
}
- get_device(&afu->dev);
+
+ /*
+ * taking a ref to the afu so that it doesn't go away
+ * for rest of the function. This ref is released before
+ * we return.
+ */
+ cxl_afu_get(afu);
spin_unlock(&adapter->afu_list_lock);
if (!afu->current_mode)
@@ -90,13 +96,12 @@ static int __afu_open(struct inode *inode, struct file *file, bool master)
file->private_data = ctx;
cxl_ctx_get();
- /* Our ref on the AFU will now hold the adapter */
- put_device(&adapter->dev);
-
- return 0;
+ /* indicate success */
+ rc = 0;
err_put_afu:
- put_device(&afu->dev);
+ /* release the ref taken earlier */
+ cxl_afu_put(afu);
err_put_adapter:
put_device(&adapter->dev);
return rc;
@@ -131,8 +136,6 @@ int afu_release(struct inode *inode, struct file *file)
mutex_unlock(&ctx->mapping_lock);
}
- put_device(&ctx->afu->dev);
-
/*
* At this this point all bottom halfs have finished and we should be
* getting no more IRQs from the hardware for this context. Once it's