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spi: pl022: don't use uninitialized variable

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The num-cs property is a required property according to the binding
documentation.  However, if it is not present, the driver currently
simply uses random junk from the stack for the num-cs since the variable
whose pointer is passed to of_property_read_u32() is not initialized.

Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Rabin Vincent 2017-04-06 10:16:23 +02:00 committed by Mark Brown
parent fafd679407
commit 849794c50b
1 changed files with 1 additions and 1 deletions
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drivers/spi/spi-pl022.c
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@ -2074,7 +2074,7 @@ pl022_platform_data_dt_get(struct device *dev)
{
struct device_node *np = dev->of_node;
struct pl022_ssp_controller *pd;
u32 tmp;
u32 tmp = 0;
if (!np) {
dev_err(dev, "no dt node defined\n");