From d741434c3e0ae5592b72a0f4833a42b4be1b2fa1 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 4 Jul 2013 10:35:35 +0100 Subject: [PATCH] dt:net:stmmac: Allocate platform data only if its NULL. In some DT use-cases platform data might be already allocated and passed via AUXDATA. These are the cases where machine level code populates few callbacks in the platform data. This patch adds check and reuses platform_data if its valid, before allocating a new one. Signed-off-by: Srinivas Kandagatla Acked-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 17bc7827e7ca..adfb9a3ce6c5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -92,8 +92,10 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) if (IS_ERR(addr)) return PTR_ERR(addr); + plat_dat = pdev->dev.platform_data; if (pdev->dev.of_node) { - plat_dat = devm_kzalloc(&pdev->dev, + if (!plat_dat) + plat_dat = devm_kzalloc(&pdev->dev, sizeof(struct plat_stmmacenet_data), GFP_KERNEL); if (!plat_dat) { @@ -106,8 +108,6 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) pr_err("%s: main dt probe failed", __func__); return ret; } - } else { - plat_dat = pdev->dev.platform_data; } /* Custom initialisation (if needed)*/ -- 2.39.5