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(parent: 9961d59) | patch
staging/olpc_docn: reorder the lock sequence to avoid potential dead lock
authorGu Zheng <guz.fnst@cn.fujitsu.com>
Thu, 31 Oct 2013 10:33:01 +0000 (18:33 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Nov 2013 00:29:43 +0000 (16:29 -0800)
commitfc0524b0986f994693f06a00c8de1c0469fd7086
treeb8ac18220c9bb11adb31e78fd77845704ba1fd8dtree | snapshot
parent9961d59d3fe7b8bd135f4a8506bd7e5f4d919dbecommit | diff
staging/olpc_docn: reorder the lock sequence to avoid potential dead lock

The lock sequence of dcon_blank_fb(fb_info->lock ---> console_lock) is against
with the one of console_callback(console_lock ---> fb_info->lock), it'll
lead to a potential dead lock, so reorder the lock sequence of dcon_blank_fb
to avoid the potential dead lock.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/olpc_dcon/olpc_dcon.c diff | blob | history
Domain: System / Uncategorized;