From b70fe965bb4c780f27efcc7aac0fd845c1825305 Mon Sep 17 00:00:00 2001 From: Ramon Fried Date: Mon, 14 May 2018 15:02:30 +0300 Subject: [PATCH] mmc: sdhci: Check that ops are defined The check is necessary to avoid NULL pointer dereference. Signed-off-by: Ramon Fried Reviewed-by: Michal Simek --- drivers/mmc/sdhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 8971a1122c..400f87e134 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -314,7 +314,7 @@ static int sdhci_execute_tuning(struct udevice *dev, uint opcode) debug("%s\n", __func__); - if (host->ops->platform_execute_tuning) { + if (host->ops && host->ops->platform_execute_tuning) { err = host->ops->platform_execute_tuning(mmc, opcode); if (err) return err; @@ -347,7 +347,7 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) if (clock == 0) return 0; - if (host->ops->set_delay) + if (host->ops && host->ops->set_delay) host->ops->set_delay(host); if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { -- 2.39.5