From 425d83346d7b2e6946633a7b96e6116f68b6e21f Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Tue, 6 Aug 2019 02:47:50 +0000 Subject: [PATCH] mmc: bcm: fix uninitialized pointer deref on probe Commit 3d296365e4e8 ("mmc: sdhci: Add support for sdhci-caps-mask") sdhci_setup_cfg() expects a valid sdhci_host mmc field. Fixes: 3d296365e4e8 ("mmc: sdhci: Add support for sdhci-caps-mask") Cc: Faiz Abbas Cc: Matthias Brugger Cc: Thomas Fitzsimmons Signed-off-by: Peng Fan --- drivers/mmc/bcm2835_sdhci.c | 4 +++- drivers/mmc/bcmstb_sdhci.c | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/bcm2835_sdhci.c b/drivers/mmc/bcm2835_sdhci.c index 08bddd410e..bf3304c4dc 100644 --- a/drivers/mmc/bcm2835_sdhci.c +++ b/drivers/mmc/bcm2835_sdhci.c @@ -214,6 +214,9 @@ static int bcm2835_sdhci_probe(struct udevice *dev) host->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; host->ops = &bcm2835_ops; + host->mmc = &plat->mmc; + host->mmc->dev = dev; + ret = sdhci_setup_cfg(&plat->cfg, host, emmc_freq, MIN_FREQ); if (ret) { debug("%s: Failed to setup SDHCI (err=%d)\n", __func__, ret); @@ -221,7 +224,6 @@ static int bcm2835_sdhci_probe(struct udevice *dev) } upriv->mmc = &plat->mmc; - host->mmc = &plat->mmc; host->mmc->priv = host; return sdhci_probe(dev); diff --git a/drivers/mmc/bcmstb_sdhci.c b/drivers/mmc/bcmstb_sdhci.c index eef46f3af1..c14f8289e6 100644 --- a/drivers/mmc/bcmstb_sdhci.c +++ b/drivers/mmc/bcmstb_sdhci.c @@ -73,6 +73,8 @@ static int sdhci_bcmstb_probe(struct udevice *dev) if (ret) return ret; + host->mmc = &plat->mmc; + host->mmc->dev = dev; ret = sdhci_setup_cfg(&plat->cfg, host, BCMSTB_SDHCI_MAXIMUM_CLOCK_FREQUENCY, BCMSTB_SDHCI_MINIMUM_CLOCK_FREQUENCY); @@ -80,7 +82,6 @@ static int sdhci_bcmstb_probe(struct udevice *dev) return ret; upriv->mmc = &plat->mmc; - host->mmc = &plat->mmc; host->mmc->priv = host; return sdhci_probe(dev); -- 2.39.5