[PATCH v6 08/24] scsi: ufs: mediatek: Rework init function

[Nicolas Frattaroli <nicolas.frattaroli@collabora.com>]

Printing an error message on ENOMEM is pointless. The print will not
work because there is no memory.

Adding an of_match_device to the init function is pointless. Why would a
different device with a different probe function ever use the same init
function? Get rid of it.

zero-initialising an error variable just so you can then goto a bare
return statement with that error variable to signal success is also
pointless, just return directly, there's no unwind being done.

Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
---
 drivers/ufs/host/ufs-mediatek.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 7fcf4ceeb56e..4cb1a1b400ac 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -1248,29 +1248,19 @@ static int ufs_mtk_get_supplies(struct ufs_mtk_host *host)
  */
 static int ufs_mtk_init(struct ufs_hba *hba)
 {
-	const struct of_device_id *id;
 	struct device *dev = hba->dev;
 	struct ufs_mtk_host *host;
 	struct Scsi_Host *shost = hba->host;
-	int err = 0;
+	int err;
 	struct arm_smccc_res res;
 
 	host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
-	if (!host) {
-		err = -ENOMEM;
-		dev_info(dev, "%s: no memory for mtk ufs host\n", __func__);
-		goto out;
-	}
+	if (!host)
+		return -ENOMEM;
 
 	host->hba = hba;
 	ufshcd_set_variant(hba, host);
 
-	id = of_match_device(ufs_mtk_of_match, dev);
-	if (!id) {
-		err = -EINVAL;
-		goto out;
-	}
-
 	/* Initialize host capability */
 	ufs_mtk_init_host_caps(hba);
 
@@ -1344,11 +1334,10 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 
 	ufs_mtk_get_hw_ip_version(hba);
 
-	goto out;
+	return 0;
 
 out_variant_clear:
 	ufshcd_set_variant(hba, NULL);
-out:
 	return err;
 }
 

-- 
2.52.0