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(parent: 16020b9) | patch
serial: core: Document lock requirement for UPF_* flags updates
authorPeter Hurley <peter@hurleysoftware.com>
Tue, 2 Sep 2014 21:39:19 +0000 (17:39 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 8 Sep 2014 23:23:36 +0000 (16:23 -0700)
commit8a949b07e4062cbd07e04e6a47249e69ca65b944
treefd8cfdd636e4bd27bcf6c3af31da41149d3139e4tree | snapshot (tar.gz zip)
parent16020b989ac72b0b02654612a7b70398a7faac21commit | diff
serial: core: Document lock requirement for UPF_* flags updates

The flags field of struct uart_port can only be safely modified
if the port mutex is held; no other lock prevents concurrent
changes from corrupting the field.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/serial_core.h diff | blob | blame | history