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spi: spi-mem: Check if exec_op function is set before calling it

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Add check if exec_op is set before calling it.
At the moment it is called unconditionally, which leads to a crash if it
is not set correctly.

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Bernhard Messerklinger 2019-03-26 10:01:24 +01:00 committed by Jagan Teki
parent 3f3aef4b9d
commit 567a3eb795
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-mem.c
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@ -214,7 +214,7 @@ int spi_mem_exec_op(struct spi_slave *slave, const struct spi_mem_op *op)
if (ret < 0)
return ret;
if (ops->mem_ops) {
if (ops->mem_ops && ops->mem_ops->exec_op) {
#ifndef __UBOOT__
/*
* Flush the message queue before executing our SPI memory