mmc: sdhci: Check that ops are defined
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>
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 8971a11..400f87e 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -314,7 +314,7 @@
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 @@
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) {