habanalabs: context cleanup cosmetics

No need to check the return value if the following action is the same for
both cases. In addition, now that hl_ctx_free() doesn't print if the
context is not released, its name can be misleading as the context might
stay alive after it is executed with no indication for that.
Hence we can discard it and simply put the refcount.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

drivers/misc/habanalabs/common/context.c

@@ -181,12 +181,6 @@ int hl_ctx_create(struct hl_device *hdev, struct hl_fpriv *hpriv)
 	return rc;
 }
 
-void hl_ctx_free(struct hl_device *hdev, struct hl_ctx *ctx)
-{
-	if (kref_put(&ctx->refcount, hl_ctx_do_release) == 1)
-		return;
-}
-
 int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx)
 {
 	int rc = 0;
@@ -392,7 +386,7 @@ void hl_ctx_mgr_fini(struct hl_device *hdev, struct hl_ctx_mgr *mgr)
 	idp = &mgr->ctx_handles;
 
 	idr_for_each_entry(idp, ctx, id)
-		hl_ctx_free(hdev, ctx);
+		kref_put(&ctx->refcount, hl_ctx_do_release);
 
 	idr_destroy(&mgr->ctx_handles);
 	mutex_destroy(&mgr->ctx_lock);