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mmc: sdhci: Check that ops are defined

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The check is necessary to avoid NULL pointer dereference.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Ramon Fried 2018-05-14 15:02:30 +03:00 • committed by Tom Rini
parent ed52ea507f
commit b70fe965bb
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/sdhci.c
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@ -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) {