staging: dgap: unwind on error in dgap_init_one()

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The dgap_init_one() needs to handle error properly
if one of functions in dgap_init_one() is failed.

Introduce some functions for handling error in dgap_init_one()
 - dgap_tty_unregister() : unregister tty driver
 - dgap_free_flipbuf() : free flip buffer
 - dgap_release_remap() : release memory region and unmapped memory.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Daeseok Youn 2014-06-13 18:23:15 +09:00 • committed by Greg Kroah-Hartman

parent 3c3befef8f

commit 91177d53a3

1 changed files with 44 additions and 9 deletions

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drivers/staging/dgap/dgap.c

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