test: wdt: Add a check that dev is not NULL

We know that uclass_get_device() does not return NULL for dev when it
succeeds but coverity does not. Add an extra check to hopefully keep it
happy.

Sign

test: wdt: Add a check that dev is not NULL

We know that uclass_get_device() does not return NULL for dev when it
succeeds but coverity does not. Add an extra check to hopefully keep it
happy.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 163247)
Fixes: 0753bc2 (dm: Simple Watchdog uclass)

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Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

dm: Simple Watchdog uclass

This is a simple uclass for Watchdog Timers. It has four operations:
start, restart, reset, stop. Drivers must implement start, restart and
stop operations, while implemen

dm: Simple Watchdog uclass

This is a simple uclass for Watchdog Timers. It has four operations:
start, restart, reset, stop. Drivers must implement start, restart and
stop operations, while implementing reset is optional: It's default
implementation expires watchdog timer in one clock tick.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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