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staging: dgnc: implement proper error handling in dgnc_start()
authorAlexey Khoroshilov <khoroshilov@ispras.ru>
Fri, 19 Dec 2014 21:51:26 +0000 (00:51 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 17 Jan 2015 23:04:12 +0000 (15:04 -0800)
dgnc_start() ignores errors in class_create() and device_create()
and it does not deallocate resources if dgnc_tty_preinit() fails.

The patch implements proper error handling.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

No differences found
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