Arnd Bergmann wrote:
A recent commit added a write to the watchdog test code for doing the "magic
close", but that caused a compile-time warning:

Documentation/watchdog/src/watchdog-test.c: In function ‘main’:
Documentation/watchdog/src/watchdog-test.c:94:5: warning: ignoring return value 
of ‘write’, declared with attribute warn_unused_result [-Wunused-result]

This changes the code to print a runtime warning if the write fails.

Fixes: 5a2d3de19602 ("Documentation/watchdog: add support for magic close to 
watchdog-test")
Signed-off-by: Arnd Bergmann<a...@arndb.de>

Acked-by: Timur Tabi <ti...@codeaurora.org>

Thanks for this patch. I don't know why I didn't notice the warnings before.

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