This is a note to let you know that I've just added the patch titled [media] em28xx: fix em28xx-input removal to the 3.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: em28xx-fix-em28xx-input-removal.patch and it can be found in the queue-3.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From bbfebeea7640973613c484f0281bdd15d68fd873 Mon Sep 17 00:00:00 2001 From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> Date: Sat, 20 Dec 2014 09:45:15 -0300 Subject: [media] em28xx: fix em28xx-input removal MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> commit bbfebeea7640973613c484f0281bdd15d68fd873 upstream. Removing the em28xx-rc module results in the following lockdep splat, which is caused by trying to call cancel_delayed_work_sync() on an uninitialised delayed work. Fix this by ensuring we always initialise the work. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 2183 Comm: rmmod Not tainted 3.18.0+ #1464 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<c0012228>] (dump_backtrace) from [<c00123c0>] (show_stack+0x18/0x1c) r6:c1419d2c r5:00000000 r4:00000000 r3:00000000 [<c00123a8>] (show_stack) from [<c06e2550>] (dump_stack+0x7c/0x98) [<c06e24d4>] (dump_stack) from [<c0061c94>] (__lock_acquire+0x16d4/0x1bb0) r4:edf19f74 r3:df049380 [<c00605c0>] (__lock_acquire) from [<c00626d4>] (lock_acquire+0xb0/0x124) r10:00000000 r9:c003ba90 r8:00000000 r7:00000000 r6:00000000 r5:edf19f74 r4:00000000 [<c0062624>] (lock_acquire) from [<c003bad4>] (flush_work+0x44/0x264) r10:00000000 r9:eaa86000 r8:edf190b0 r7:edf19f74 r6:00000001 r5:edf19f64 r4:00000000 [<c003ba90>] (flush_work) from [<c003d8f0>] (__cancel_work_timer+0x8c/0x124) r7:00000000 r6:00000001 r5:00000000 r4:edf19f64 [<c003d864>] (__cancel_work_timer) from [<c003d99c>] (cancel_delayed_work_sync+0x14/0x18) r7:00000000 r6:eccc3600 r5:00000000 r4:edf19000 [<c003d988>] (cancel_delayed_work_sync) from [<bf0b5c10>] (em28xx_ir_fini+0x48/0xd8 [em28xx_rc]) [<bf0b5bc8>] (em28xx_ir_fini [em28xx_rc]) from [<bf08a0a8>] (em28xx_unregister_extension+0x40/0x94 [em28xx]) r8:c000edc4 r7:00000081 r6:bf092bf4 r5:bf0b6a2c r4:edf19000 r3:bf0b5bc8 [<bf08a068>] (em28xx_unregister_extension [em28xx]) from [<bf0b64dc>] (em28xx_rc_unregister+0x14/0x1c [em28xx_rc]) r6:00000800 r5:00000000 r4:bf0b6a50 r3:bf0b64c8 [<bf0b64c8>] (em28xx_rc_unregister [em28xx_rc]) from [<c0096710>] (SyS_delete_module+0x11c/0x180) [<c00965f4>] (SyS_delete_module) from [<c000ec00>] (ret_fast_syscall+0x0/0x48) r6:00000001 r5:beb0f813 r4:b8b17d00 Fixes: f52226099382 ("[media] em28xx: extend the support for device buttons") Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> Reviewed-by: Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/media/usb/em28xx/em28xx-input.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/media/usb/em28xx/em28xx-input.c +++ b/drivers/media/usb/em28xx/em28xx-input.c @@ -654,8 +654,6 @@ next_button: if (dev->num_button_polling_addresses) { memset(dev->button_polling_last_values, 0, EM28XX_NUM_BUTTON_ADDRESSES_MAX); - INIT_DELAYED_WORK(&dev->buttons_query_work, - em28xx_query_buttons); schedule_delayed_work(&dev->buttons_query_work, msecs_to_jiffies(dev->button_polling_interval)); } @@ -689,6 +687,7 @@ static int em28xx_ir_init(struct em28xx } kref_get(&dev->ref); + INIT_DELAYED_WORK(&dev->buttons_query_work, em28xx_query_buttons); if (dev->board.buttons) em28xx_init_buttons(dev); Patches currently in stable-queue which might be from rmk+kernel@xxxxxxxxxxxxxxxx are queue-3.19/em28xx-input-fix-missing-newlines.patch queue-3.19/em28xx-audio-fix-missing-newlines.patch queue-3.19/em28xx-video-fix-missing-newlines.patch queue-3.19/em28xx-dvb-fix-missing-newlines.patch queue-3.19/em28xx-ensure-closing-messages-terminate-with-a-newline.patch queue-3.19/em28xx-audio-fix-missing-newlines-again.patch queue-3.19/em28xx-core-fix-missing-newlines.patch queue-3.19/em28xx-fix-em28xx-input-removal.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html