Re: [PATCH] phy: uniphier-usb3: no devm for nvmem_cell_get

From: Kunihiko Hayashi

Date: Wed Mar 04 2026 - 03:33:02 EST


Hi Rosen,

On 2026/03/04 13:16, Rosen Penev wrote:
There is absolutely no reason to extend the lifetime of nvmem_cell_get
to after removal of the driver. Use and free right after use.

Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
drivers/phy/socionext/phy-uniphier-usb3hs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/socionext/phy-uniphier-usb3hs.c
b/drivers/phy/socionext/phy-uniphier-usb3hs.c
index 8c8673df0084..c8971eee3640 100644
--- a/drivers/phy/socionext/phy-uniphier-usb3hs.c
+++ b/drivers/phy/socionext/phy-uniphier-usb3hs.c
@@ -104,11 +104,12 @@ static int uniphier_u3hsphy_get_nvparam(struct
uniphier_u3hsphy_priv *priv,
struct nvmem_cell *cell;
u8 *buf;
- cell = devm_nvmem_cell_get(priv->dev, name);
+ cell = nvmem_cell_get(priv->dev, name);
if (IS_ERR(cell))
return PTR_ERR(cell);
buf = nvmem_cell_read(cell, NULL);
+ nvmem_cell_put(cell);
if (IS_ERR(buf))
return PTR_ERR(buf);

Looks good to me.
This function is called multiple times and creates a cell each time,
so it's probably better to delete it after using it.

Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>

Thank you,

---
Best Regards
Kunihiko Hayashi