The following 13 patches are a substantial rework of lirc_zilog reference counting, object allocation and deallocation, and object locking. With these changes, devices can now disappear out from under lircd + lirc_dev + lirc_zilog with no adverse effects. I tested this with irw + lircd + lirc_dev + lirc_zilog + cx18 + HVR-1600. I could unload the cx18 driver without any oops or application crashes. When I reloaded the cx18 driver, irw started receiving RX button presses again, and irsend worked without a problem (and I didn't even need to restart lircd!). The ref counting fixes aren't finished as lirc_zilog itself can still be unloaded by the user when it shouldn't be, but a hot unplug of an HD-PVR, PVR-USB2, or HVR-1950 isn't going to trigger that. These changes are base off of Jarod Wilson's git repo http://git.linuxtv.org/jarod/linux-2.6-ir.git for-2.6.38 (IIRC) Regards, Andy The following changes since commit c369acfb63914f9f502baef032bacfd5a53a871f: mceusb: really fix remaining keybounce issues (2011-01-26 10:56:29 -0500) are available in the git repository at: ssh://linuxtv.org/git/awalls/media_tree.git z8-wilson-38 Andy Walls (13): lirc_zilog: Restore checks for existence of the IR_tx object lirc_zilog: Remove broken, ineffective reference counting lirc_zilog: Convert ir_device instance array to a linked list lirc_zilog: Convert the instance open count to an atomic_t lirc_zilog: Use kernel standard methods for marking device non-seekable lirc_zilog: Don't acquire the rx->buf_lock in the poll() function lirc_zilog: Remove unneeded rx->buf_lock lirc_zilog: Always allocate a Rx lirc_buffer object lirc_zilog: Move constants from ir_probe() into the lirc_driver template lirc_zilog: Add ref counting of struct IR, IR_tx, and IR_rx lirc_zilog: Add locking of the i2c_clients when in use lirc_zilog: Fix somewhat confusing information messages in ir_probe() lirc_zilog: Update TODO list based on work completed and revised plans drivers/staging/lirc/TODO.lirc_zilog | 51 +-- drivers/staging/lirc/lirc_zilog.c | 802 +++++++++++++++++++++------------- 2 files changed, 523 insertions(+), 330 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
