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linux/drivers/i2c/busses
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Uwe Kleine-König 6bce25a155 i2c: imx: Make sure to unregister adapter on remove() 
commit d98bdd3a5b upstream.

If for whatever reasons pm_runtime_resume_and_get() fails and .remove() is
exited early, the i2c adapter stays around and the irq still calls its
handler, while the driver data and the register mapping go away. So if
later the i2c adapter is accessed or the irq triggers this results in
havoc accessing freed memory and unmapped registers.

So unregister the software resources even if resume failed, and only skip
the hardware access in that case.

Fixes: 588eb93ea4 ("i2c: imx: add runtime pm support to improve the performance")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2022-08-25 11:45:35 +02:00
..
i2c-acorn.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-ali15x3.c i2c: Use separate MODULE_AUTHOR() statements for multiple authors 2020-07-04 08:25:13 +02:00
i2c-ali1535.c i2c: ali1535: mention that the device should not be disabled 2021-07-02 09:14:46 +02:00
i2c-ali1563.c i2c: busses: i2c-ali1563: File headers are not good candidates for kernel-doc 2021-05-27 21:29:26 +02:00
i2c-altera.c i2c: altera: Fix formatting issue in struct and demote unworthy kernel-doc headers 2021-06-03 22:25:24 +02:00
i2c-amd-mp2-pci.c i2c: amd-mp2: Remove useless DMA-32 fallback configuration 2022-02-07 15:32:14 +01:00
i2c-amd-mp2-plat.c i2c: amd-mp2-plat: ACPI: Use ACPI_COMPANION() directly 2021-11-07 14:57:41 +01:00
i2c-amd-mp2.h i2c: amd-mp2: Remove unused macro 2021-02-01 23:01:50 +01:00
i2c-amd756-s4882.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-amd756.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-amd8111.c i2c: amd8111: Fix coding style issues 2021-04-15 22:24:11 +02:00
i2c-aspeed.c i2c: aspeed: Remove unused includes 2021-12-16 22:27:16 +01:00
i2c-at91-core.c i2c: at91: mark PM ops as __maybe unused 2021-08-11 15:54:01 +02:00
i2c-at91-master.c i2c: at91: Initialize dma_buf in at91_twi_xfer() 2022-05-14 15:41:16 +02:00
i2c-at91-slave.c i2c: at91: added slave mode support 2019-03-24 22:41:51 +01:00
i2c-at91.h i2c: at91: remove legacy DMA left overs 2020-11-03 21:34:40 +01:00
i2c-au1550.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-axxia.c i2c: busses: remove duplicate dev_err() 2020-04-18 23:42:14 +02:00
i2c-bcm-iproc.c i2c: iproc: fix race between client unreg and tasklet 2021-08-10 22:40:55 +02:00
i2c-bcm-kona.c i2c: bcm-kona: Fix return value in probe() 2021-09-29 23:05:05 +02:00
i2c-bcm2835.c Merge tag 'irq-api-2022-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow 2022-02-23 14:14:15 +01:00
i2c-brcmstb.c i2c: brcmstb: fix support for DSL and CM variants 2022-02-18 10:37:33 +01:00
i2c-cadence.c i2c: cadence: Support PEC for SMBus block read 2022-08-17 15:14:54 +02:00
i2c-cbus-gpio.c i2c: cbus-gpio: set atomic transfer callback 2021-11-29 09:52:10 +01:00
i2c-ccgx-ucsi.c i2c: Introduce common module to instantiate CCGx UCSI 2022-02-15 10:04:53 +01:00
i2c-ccgx-ucsi.h i2c: Introduce common module to instantiate CCGx UCSI 2022-02-15 10:04:53 +01:00
i2c-cht-wc.c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-03-26 12:46:08 -07:00
i2c-cp2615.c i2c: cp2615: check for allocation failure in cp2615_i2c_recv() 2021-06-20 23:13:34 +02:00
i2c-cpm.c i2c: cpm: Fix i2c_ram structure 2020-09-27 15:14:16 +02:00
i2c-cros-ec-tunnel.c i2c: cros-ec-tunnel: Fix syntax errors in comments 2022-03-11 21:54:21 +01:00
i2c-davinci.c i2c: davinci: using pm_runtime_resume_and_get instead of pm_runtime_get_sync 2022-05-04 22:40:35 +02:00
i2c-designware-amdpsp.c i2c: designware: Modify timing parameters for amdpsp mailbox 2022-05-04 21:54:11 +02:00
i2c-designware-baytrail.c i2c: designware: Add AMD PSP I2C bus support 2022-02-11 15:38:23 +01:00
i2c-designware-common.c i2c: designware: Use standard optional ref clock implementation 2022-06-13 16:50:27 +02:00
i2c-designware-core.h i2c: designware: Use the i2c_mark_adapter_suspended/resumed() helpers 2022-03-01 16:31:39 +01:00
i2c-designware-master.c i2c: designware: Use the i2c_mark_adapter_suspended/resumed() helpers 2022-03-01 16:31:39 +01:00
i2c-designware-pcidrv.c i2c: designware: Use the i2c_mark_adapter_suspended/resumed() helpers 2022-03-01 16:31:39 +01:00
i2c-designware-platdrv.c i2c: designware: Use standard optional ref clock implementation 2022-06-13 16:50:27 +02:00
i2c-designware-slave.c i2c: designware: slave should do WRITE_REQUESTED before WRITE_RECEIVED 2020-11-06 16:02:00 +01:00
i2c-digicolor.c i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ 2021-02-12 08:21:57 +01:00
i2c-diolan-u2c.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-dln2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-eg20t.c i2c: busses: i2c-eg20t: Fix 'bad line' issue and provide description for 'msgs' param 2021-05-27 21:33:10 +02:00
i2c-elektor.c Merge branch 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2021-02-22 09:02:24 -08:00
i2c-emev2.c i2c: emev2: add IRQ check 2021-04-14 10:20:00 +02:00
i2c-exynos5.c i2c: exynos5: Fix getting the optional clock 2021-12-16 22:21:27 +01:00
i2c-fsi.c i2c: fsi: Prevent adding adapters for ports without dts nodes 2020-07-24 21:31:33 +02:00
i2c-gpio.c i2c: gpio: fix MODULE_LICENCE 2021-01-05 17:30:45 +01:00
i2c-highlander.c i2c: highlander: add IRQ check 2021-08-03 22:48:39 +02:00
i2c-hisi.c i2c: add support for HiSilicon I2C controller 2021-04-10 21:54:05 +02:00
i2c-hix5hd2.c i2c: hix5hd2: fix IRQ check 2021-08-19 19:18:24 +02:00
i2c-hydra.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-i801.c i2c: i801: Drop two outdated comments 2022-03-11 21:33:08 +01:00
i2c-ibm_iic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-ibm_iic.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-icy.c i2c: icy: Remove unused variable new_fwnode in icy_probe() 2021-05-25 21:21:32 +02:00
i2c-img-scb.c i2c: img-scb: fix reference leak when pm_runtime_get_sync fails 2021-04-14 09:49:06 +02:00
i2c-imx-lpi2c.c i2c: imx-lpi2c: fix reference leak when pm_runtime_get_sync fails 2021-04-14 09:49:09 +02:00
i2c-imx.c i2c: imx: Make sure to unregister adapter on remove() 2022-08-25 11:45:35 +02:00
i2c-iop3xx.c i2c: iop3xx: fix deferred probing 2021-08-19 19:18:17 +02:00
i2c-iop3xx.h Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-07-15 21:10:39 -07:00
i2c-isch.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
i2c-ismt.c i2c: ismt: prevent memory corruption in ismt_access() 2022-06-02 08:40:56 -07:00
i2c-jz4780.c Merge branch 'i2c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2021-04-30 13:01:02 -07:00
i2c-kempld.c i2c: kempld: deprecate class based instantiation 2021-09-29 23:07:02 +02:00
i2c-lpc2k.c i2c: busses: remove duplicate dev_err() 2020-04-18 23:42:14 +02:00
i2c-meson.c i2c: meson: fix typo in comment 2022-05-21 13:33:25 +02:00
i2c-mlxbf.c i2c: mlxbf: add IRQ check 2021-04-14 10:20:45 +02:00
i2c-mlxcpld.c i2c: mlxcpld: Fix register setting for 400KHz frequency 2022-07-16 14:17:11 +02:00
i2c-mpc.c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-01-14 16:19:38 +01:00
i2c-mt65xx.c i2c: mediatek: Fix an error handling path in mtk_i2c_probe() 2022-06-14 22:11:54 +02:00
i2c-mt7621.c I2C for 5.19-rc1 2022-05-31 14:34:00 -07:00
i2c-mv64xxx.c i2c: mv64xxx: Fix random system lock caused by runtime PM 2021-04-15 22:13:19 +02:00
i2c-mxs.c i2c: mxs: Silence a clang warning 2022-08-17 15:14:28 +02:00
i2c-nforce2-s4985.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-nforce2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-nomadik.c i2c: busses: i2c-nomadik: Fix formatting issue pertaining to 'timeout' 2021-05-27 21:27:48 +02:00
i2c-npcm7xx.c i2c: npcm: Correct slave role behavior 2022-08-17 15:14:27 +02:00
i2c-nvidia-gpu.c i2c: nvidia-gpu: Convert to use dev_err_probe() 2022-02-15 10:05:02 +01:00
i2c-ocores.c i2c: busses: i2c-ocores: Place the expected function names into the documentation headers 2021-05-27 21:33:41 +02:00
i2c-octeon-core.c i2c: octeon: check correct size of maximum RECV_LEN packet 2021-01-17 12:26:55 +01:00
i2c-octeon-core.h i2c: octeon: Prevent error message on bus error 2018-03-02 11:11:15 +01:00
i2c-octeon-platdrv.c i2c: busses: convert to devm_platform_ioremap_resource 2020-04-15 12:09:09 +02:00
i2c-omap.c i2c: omap: fix reference leak when pm_runtime_get_sync fails 2021-04-14 09:49:17 +02:00
i2c-opal.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
i2c-owl.c i2c: owl: Add compatible for the Actions Semi S500 I2C controller 2020-12-09 21:23:21 +01:00
i2c-parport.c i2c: parport: Switch to use module_parport_driver() 2021-08-10 23:07:37 +02:00
i2c-pasemi-core.c i2c: pasemi: Wait for write xfers to finish 2022-04-15 23:12:02 +02:00
i2c-pasemi-core.h i2c: pasemi: Set enable bit for Apple variant 2021-10-11 11:45:56 +02:00
i2c-pasemi-pci.c i2c: pasemi: Drop I2C classes from platform driver variant 2022-02-15 10:28:34 +01:00
i2c-pasemi-platform.c i2c: pasemi: Add Apple platform driver 2021-10-11 11:45:48 +02:00
i2c-pca-isa.c isa: Make the remove callback for isa drivers return void 2021-01-26 07:42:27 +01:00
i2c-pca-platform.c i2c: pca-platform: drop two members from driver data that are assigned to only 2020-12-02 21:29:31 +01:00
i2c-piix4.c i2c: piix4: Fix a memory leak in the EFCH MMIO support 2022-06-29 21:35:44 +02:00
i2c-pnx.c i2c: busses: i2c-pnx: Provide descriptions for 'alg_data' data structure 2021-05-27 21:34:08 +02:00
i2c-powermac.c i2c: powermac: Prepare cleanup of powerpc's asm/prom.h 2022-05-04 22:32:45 +02:00
i2c-pxa-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 462 2019-06-19 17:09:10 +02:00
i2c-pxa.c i2c: pxa: drop unneeded MODULE_ALIAS 2021-10-02 09:32:06 +02:00
i2c-qcom-cci.c Merge tag 'irq-api-2022-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow 2022-02-23 14:14:15 +01:00
i2c-qcom-geni.c i2c: qcom-geni: Fix GPI DMA buffer sync-back 2022-08-25 11:45:25 +02:00
i2c-qup.c i2c: qup: move to use request_irq by IRQF_NO_AUTOEN flag 2021-10-29 21:57:33 +02:00
i2c-rcar.c i2c: rcar: use flags instead of atomic_xfer 2022-05-21 12:55:32 +02:00
i2c-riic.c i2c: riic: Simplify reset handling 2022-03-01 16:05:01 +01:00
i2c-rk3x.c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-01-14 16:19:38 +01:00
i2c-robotfuzz-osif.c i2c: robotfuzz-osif: fix control-request directions 2021-06-24 22:08:00 +02:00
i2c-s3c2410.c i2c: s3c2410: fix IRQ check 2021-08-19 19:18:24 +02:00
i2c-scmi.c i2c: i2c-scmi: Drop unused ACPI_MODULE_NAME definition 2021-03-18 12:11:45 +01:00
i2c-sh7760.c i2c: sh7760: fix IRQ error path 2021-04-17 22:00:58 +02:00
i2c-sh_mobile.c i2c: sh_mobile: remove unneeded semicolon 2022-01-11 21:11:24 +01:00
i2c-sibyte.c i2c: Use separate MODULE_AUTHOR() statements for multiple authors 2020-07-04 08:25:13 +02:00
i2c-simtec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 2019-06-19 17:09:07 +02:00
i2c-sis96x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sis630.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sis5595.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-sprd.c i2c: sprd: fix reference leak when pm_runtime_get_sync fails 2021-04-14 09:49:20 +02:00
i2c-st.c i2c: busses: i2c-st: Fix copy/paste function misnaming issues 2021-05-27 21:39:35 +02:00
i2c-stm32.c i2c: stm32: Simplify with dev_err_probe() 2020-09-21 11:45:43 +02:00
i2c-stm32.h i2c: stm32: Use the correct style for SPDX License Identifier 2019-08-14 14:56:54 +02:00
i2c-stm32f4.c i2c: busses: i2c-stm32f4: Remove incorrectly placed ' ' from function name 2021-05-27 21:39:57 +02:00
i2c-stm32f7.c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2022-01-14 16:19:38 +01:00
i2c-sun6i-p2wi.c i2c: sun6i-pw2i: Prefer strscpy over strlcpy 2021-08-17 21:37:40 +02:00
i2c-synquacer.c i2c: synquacer: fix deferred probing 2021-08-17 21:41:32 +02:00
i2c-taos-evm.c i2c: taos-evm: convert to use i2c_new_client_device() 2020-01-15 20:39:41 +01:00
i2c-tegra-bpmp.c i2c: tegra-bpmp: Demote kernel-doc abuses 2021-06-03 22:31:42 +02:00
i2c-tegra.c i2c: tegra: Add SMBus block read function 2022-03-01 20:34:00 +01:00
i2c-thunderx-pcidrv.c drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers 2022-05-21 13:41:28 +02:00
i2c-tiny-usb.c i2c: tiny-usb: Correct I2C fault codes. 2020-01-06 15:40:43 +01:00
i2c-uniphier-f.c i2c: busses: remove duplicate dev_err() 2020-04-18 23:42:14 +02:00
i2c-uniphier.c i2c: busses: remove duplicate dev_err() 2020-04-18 23:42:14 +02:00
i2c-versatile.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-via.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-viapro.c i2c: busses: Use fallthrough pseudo-keyword 2020-07-23 22:04:08 +02:00
i2c-viperboard.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-virtio.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
i2c-wmt.c i2c: drivers: Use generic definitions for bus frequencies 2020-03-24 22:36:59 +01:00
i2c-xgene-slimpro.c i2c: xgene-slimpro: Fix wrong pointer passed to PTR_ERR() 2021-11-06 22:09:37 +01:00
i2c-xiic.c i2c: xiic: Correct the datatype for rx_watermark 2022-05-21 08:18:20 +02:00
i2c-xlp9xx.c i2c: Remove Netlogic XLP variant 2021-11-23 10:00:12 +01:00
Kconfig Merge tag 'irq-api-2022-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow 2022-02-23 14:14:15 +01:00
Makefile i2c: Introduce common module to instantiate CCGx UCSI 2022-02-15 10:04:53 +01:00
scx200_acb.c i2c: busses: Use fallthrough pseudo-keyword 2020-07-23 22:04:08 +02:00