Daniel Baluta 99472d43f4 mailbox: imx: Fix Tx doorbell shutdown path ... [ Upstream commit bf159d151a ] Tx doorbell is handled by txdb_tasklet and doesn't have an associated IRQ. Anyhow, imx_mu_shutdown ignores this and tries to free an IRQ that wasn't requested for Tx DB resulting in the following warning: [ 1.967644] Trying to free already-free IRQ 26 [ 1.972108] WARNING: CPU: 2 PID: 157 at kernel/irq/manage.c:1708 __free_irq+0xc0/0x358 [ 1.980024] Modules linked in: [ 1.983088] CPU: 2 PID: 157 Comm: kworker/2:1 Tainted: G [ 1.993524] Hardware name: Freescale i.MX8QXP MEK (DT) [ 1.998668] Workqueue: events deferred_probe_work_func [ 2.003812] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 2.008607] pc : __free_irq+0xc0/0x358 [ 2.012364] lr : __free_irq+0xc0/0x358 [ 2.016111] sp : ffff00001179b7e0 [ 2.019422] x29: ffff00001179b7e0 x28: 0000000000000018 [ 2.024736] x27: ffff000011233000 x26: 0000000000000004 [ 2.030053] x25: 000000000000001a x24: ffff80083bec74d4 [ 2.035369] x23: 0000000000000000 x22: ffff80083bec7588 [ 2.040686] x21: ffff80083b1fe8d8 x20: ffff80083bec7400 [ 2.046003] x19: 0000000000000000 x18: ffffffffffffffff [ 2.051320] x17: 0000000000000000 x16: 0000000000000000 [ 2.056637] x15: ffff0000111296c8 x14: ffff00009179b517 [ 2.061953] x13: ffff00001179b525 x12: ffff000011142000 [ 2.067270] x11: ffff000011129f20 x10: ffff0000105da970 [ 2.072587] x9 : 00000000ffffffd0 x8 : 0000000000000194 [ 2.077903] x7 : 612065657266206f x6 : ffff0000111e7b09 [ 2.083220] x5 : 0000000000000003 x4 : 0000000000000000 [ 2.088537] x3 : 0000000000000000 x2 : 00000000ffffffff [ 2.093854] x1 : 28b70f0a2b60a500 x0 : 0000000000000000 [ 2.099173] Call trace: [ 2.101618] __free_irq+0xc0/0x358 [ 2.105021] free_irq+0x38/0x98 [ 2.108170] imx_mu_shutdown+0x90/0xb0 [ 2.111921] mbox_free_channel.part.2+0x24/0xb8 [ 2.116453] mbox_free_channel+0x18/0x28 This bug is present from the beginning of times. Cc: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-01-04 19:18:30 +01:00
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Kconfig	mailbox: omap: Add support for TI K3 SoCs	2019-07-10 23:08:44 -05:00
Makefile	mailbox: Add support for Armada 37xx rWTM mailbox	2019-05-09 00:41:00 -05:00
arm_mhu.c	mailbox: arm_mhu: reorder header inclusion and drop unneeded ones	2019-07-10 23:08:43 -05:00
armada-37xx-rwtm-mailbox.c	mailbox: armada-37xx-rwtm: Use device-managed registration API	2019-09-17 00:38:43 -05:00
bcm-flexrm-mailbox.c	- stm32: race fix by adding a spinlock	2019-07-14 16:36:51 -07:00
bcm-pdc-mailbox.c	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
bcm2835-mailbox.c	mailbox: bcm2835: Use device-managed registration API	2018-12-21 16:49:25 -06:00
hi3660-mailbox.c	mailbox: hi3660: Use device-managed registration API	2018-12-21 16:49:25 -06:00
hi6220-mailbox.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285	2019-06-05 17:36:37 +02:00
imx-mailbox.c	mailbox: imx: Fix Tx doorbell shutdown path	2020-01-04 19:18:30 +01:00
mailbox-altera.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
mailbox-sti.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
mailbox-test.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
mailbox-xgene-slimpro.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
mailbox.c	mailbox: handle failed named mailbox channel request	2019-07-11 10:19:00 -05:00
mailbox.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
mtk-cmdq-mailbox.c	mailbox: mediatek: cmdq: clear the event in cmdq initial flow	2019-09-17 00:40:05 -05:00
omap-mailbox.c	mailbox: omap: Add support for TI K3 SoCs	2019-07-10 23:08:44 -05:00
pcc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
pl320-ipc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
platform_mhu.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285	2019-06-05 17:36:37 +02:00
qcom-apcs-ipc-mailbox.c	mailbox: qcom-apcs: fix max_register value	2019-09-17 00:54:29 -05:00
rockchip-mailbox.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
stm32-ipcc.c	mailbox: stm32_ipcc: add spinlock to fix channels concurrent access	2019-07-10 23:08:43 -05:00
tegra-hsp.c	mailbox: tegra: Fix superfluous IRQ error message	2019-12-13 08:42:19 +01:00
ti-msgmgr.c	mailbox: ti-msgmgr: Use device-managed registration API	2018-12-21 16:49:26 -06:00
zynqmp-ipi-mailbox.c	mailbox: ZynqMP IPI mailbox controller	2019-03-06 20:34:20 -06:00