From 41a9fab8dac841afb70a059668abaf14d47cdf59 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Mon, 22 Jul 2019 18:55:35 +0300 Subject: [PATCH] mmc: mv_sdhci: fix uninitialized pointer deref on probe Since commit 3d296365e4e8 ("mmc: sdhci: Add support for sdhci-caps-mask") sdhci_setup_cfg() expects a valid sdhci_host mmc field. Move the mmc field initialization before sdhci_setup_cfg() call to avoid crash on mmc pointer dereference. Fixes: 3d296365e4e8 ("mmc: sdhci: Add support for sdhci-caps-mask") Cc: Faiz Abbas Signed-off-by: Baruch Siach --- drivers/mmc/mv_sdhci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/mv_sdhci.c b/drivers/mmc/mv_sdhci.c index bf26d2e4e2..f5f3e43247 100644 --- a/drivers/mmc/mv_sdhci.c +++ b/drivers/mmc/mv_sdhci.c @@ -114,6 +114,9 @@ static int mv_sdhci_probe(struct udevice *dev) host->name = MVSDH_NAME; host->ioaddr = (void *)devfdt_get_addr(dev); host->quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD; + host->mmc = &plat->mmc; + host->mmc->dev = dev; + host->mmc->priv = host; ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0); if (ret) @@ -124,9 +127,6 @@ static int mv_sdhci_probe(struct udevice *dev) sdhci_mvebu_mbus_config(host->ioaddr); } - host->mmc = &plat->mmc; - host->mmc->dev = dev; - host->mmc->priv = host; upriv->mmc = host->mmc; return sdhci_probe(dev); -- GitLab