Commit 8db67bb6a1ff for kernel

commit 8db67bb6a1fffa4df68fbbc22e39943aeeff9178
Author: Coia Prant <coiaprant@gmail.com>
Date:   Wed Sep 23 20:37:13 2026 +0800

    net: ethernet: stmmac: dwmac-rk: fix bulk clock leak when the PHY clock fails

    gmac_clk_enable() enables the bulk clocks first and then the optional
    PHY clock. If clk_prepare_enable() on the PHY clock fails, the function
    returns without rolling back the bulk clocks, and bsp_priv->clk_enabled
    stays false, so the later gmac_clk_enable(bsp_priv, false) becomes a
    no-op and the bulk clock references are leaked.

    Add the missing clk_bulk_disable_unprepare() on that failure path.

    Fixes: ea449f7fa0bf ("net: ethernet: stmmac: dwmac-rk: rework optional clock handling")
    Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
    Reviewed-by: Heiko Stuebner <heiko@sntech.de>
    Acked-by: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com>
    Signed-off-by: Coia Prant <coiaprant@gmail.com>
    Link: https://patch.msgid.link/20260923123713.3137146-1-coiaprant@gmail.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 8d7042e68926..72bdbcb5e863 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1162,8 +1162,11 @@ static int gmac_clk_enable(struct rk_priv_data *bsp_priv, bool enable)
 				return ret;

 			ret = clk_prepare_enable(bsp_priv->clk_phy);
-			if (ret)
+			if (ret) {
+				clk_bulk_disable_unprepare(bsp_priv->num_clks,
+							   bsp_priv->clks);
 				return ret;
+			}

 			rk_configure_io_clksel(bsp_priv);
 			rk_ungate_rmii_clock(bsp_priv);