From patchwork Tue Mar 27 17:53:55 2018
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Subject: [U-Boot] mmc: mv_sdhci: zero out sdhci_host structure
X-Patchwork-Submitter: Matt Pelland <mpelland@starry.com>
X-Patchwork-Id: 891784
Message-Id: <20180327175355.29633-1-mpelland@starry.com>
To: u-boot@lists.denx.de
Date: Tue, 27 Mar 2018 13:53:55 -0400
From: Matt Pelland <mpelland@starry.com>
List-Id: U-Boot discussion <u-boot.lists.denx.de>
The mv_sdhci driver was not zeroing the sdhci_host structure it
allocates causing random access violations in parts of the mmc core
where the "ops" member pointers are checked and called if not NULL.
Signed-off-by: Matt Pelland <mpelland@starry.com>
---
drivers/mmc/mv_sdhci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/mv_sdhci.c b/drivers/mmc/mv_sdhci.c
index 69aa87babe..afc03f75a0 100644
--- a/drivers/mmc/mv_sdhci.c
+++ b/drivers/mmc/mv_sdhci.c
@@ -74,6 +74,8 @@ int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks)
return -ENOMEM;
}
+ memset(host, 0, sizeof(struct sdhci_host));
+
host->name = MVSDH_NAME;
host->ioaddr = (void *)regbase;
host->quirks = quirks;