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linux-stable/drivers/pinctrl
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Stefan Agner 9999fe5df5 pinctrl: imx: reset group index on probe 
Group index is incremented on every new group parsed. Since the
field is part of struct imx_pinctrl_soc_info, which is typically
a global variable passed by the individual pinctrl-imx.c based
driver, it does not get cleared automatically when re-probing the
driver. This lead imx_pinctrl_parse_functions passing a group
pointer which is outside of the allocated group space on second
probe and onwards. Typically this ended up in a NULL pointer
dereference when accessing the name field like this:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
PC is at strcmp+0x18/0x44
LR is at imx_dt_node_to_map+0xc4/0x290

Avoid this by setting group_index to 0 on probe.

This has been observed when using DEBUG_TEST_DRIVER_REMOVE.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-31 21:25:15 +01:00
..
aspeed pinctrl: aspeed-g5: Fix pin association of SPI1 function 2016-10-18 14:36:12 +02:00
bcm pinctrl: iproc: Fix iProc and NSP GPIO support 2016-10-31 21:25:15 +01:00
berlin pinctrl: berlin: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 00:02:13 +02:00
freescale pinctrl: imx: reset group index on probe 2016-10-31 21:25:15 +01:00
intel pinctrl: intel: Only restore pins that are used by the driver 2016-10-18 14:38:16 +02:00
mediatek pinctrl: mediatek: constify gpio_chip structures 2016-09-13 10:39:33 +02:00
meson Linux 4.8-rc6 2016-09-23 14:57:16 +02:00
mvebu pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181 2016-09-21 11:49:18 +02:00
nomadik pinctrl: nomadik: don't default-flag IRQs as falling 2016-09-19 11:01:33 +02:00
pxa pinctrl: pxa: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 00:03:04 +02:00
qcom pinctrl: qcom: fix masking of pinmux functions 2016-10-04 00:36:20 +02:00
samsung Merge branch 'fixes' into devel 2016-09-23 17:41:40 +02:00
sh-pfc pinctrl: sh-pfc: r8a7794: Implement voltage switching for SDHI 2016-09-14 09:26:54 +02:00
sirf pinctrl: sirf: make core support explicitly non-modular 2016-08-27 13:16:12 +02:00
spear pinctrl: spear: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 00:03:18 +02:00
stm32 pinctrl: stm32: remove dependency with interrupt controller 2016-10-31 21:25:15 +01:00
sunxi This is the bulk of GPIO changes for the v4.9 series: 2016-10-05 11:49:09 -07:00
tegra This is the bulk of pin control changes for the v4.8 kernel cycle. 2016-07-28 17:06:51 -07:00
uniphier pinctrl: uniphier: add Ethernet pin-mux settings 2016-07-11 09:53:25 +02:00
vt8500 pinctrl: vt8500: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:20 +02:00
core.c pinctrl: copy per-pin driver private data to struct pin_desc 2016-05-31 10:27:19 +02:00
core.h pinctrl: copy per-pin driver private data to struct pin_desc 2016-05-31 10:27:19 +02:00
devicetree.c pinctrl: OF: Don't create a pinctrl handle if no pinctrl entries exist 2016-06-18 10:40:15 +02:00
devicetree.h
Kconfig pinctrl: Add core support for Aspeed SoCs 2016-09-07 16:48:22 +02:00
Makefile pinctrl: Add core support for Aspeed SoCs 2016-09-07 16:48:22 +02:00
pinconf-generic.c Merge branch 'devel-dt-free-map' into devel 2016-06-23 11:19:14 +02:00
pinconf.c pinctrl: pinconf: separate config parameters with commas for debugfs 2016-05-31 10:29:06 +02:00
pinconf.h
pinctrl-adi2-bf54x.c
pinctrl-adi2-bf60x.c added tabs instead of spaces 2015-07-16 09:39:01 +02:00
pinctrl-adi2.c pinctrl: adi2: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:20 +02:00
pinctrl-adi2.h
pinctrl-amd.c Linux 4.8-rc6 2016-09-23 14:57:16 +02:00
pinctrl-amd.h
pinctrl-as3722.c pinctrl: as3722: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:21 +02:00
pinctrl-at91-pio4.c pinctrl: at91-pio4: make it explicitly non-modular 2016-06-13 08:40:14 +02:00
pinctrl-at91.c pinctrl/at91: Don't provide a default trigger type 2016-09-12 14:17:02 +02:00
pinctrl-at91.h
pinctrl-coh901.c pinctrl: coh901: fix initconst annotation 2016-02-15 20:40:52 +01:00
pinctrl-coh901.h
pinctrl-digicolor.c Revert "pinctrl: digicolor: add missing platform_set_drvdata() call" 2016-06-23 09:50:05 +02:00
pinctrl-falcon.c
pinctrl-lantiq.c pinctrl: lantiq: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:23 +02:00
pinctrl-lantiq.h pinctrl/lantiq: introduce new dedicated devicetree bindings 2015-11-30 13:12:07 +01:00
pinctrl-lpc18xx.c pinctrl: lpc18xx: make it explicitly non-modular 2016-06-13 08:28:18 +02:00
pinctrl-max77620.c pinctrl: max77620: Remove unused structure definition 2016-06-15 08:37:40 +02:00
pinctrl-oxnas.c pinctrl: oxnas: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map 2016-05-31 12:59:29 +02:00
pinctrl-palmas.c pinctrl: palmas: fix a possible NULL dereference 2016-08-22 14:11:00 +02:00
pinctrl-pic32.c pinctrl: pic32: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:24 +02:00
pinctrl-pic32.h pinctrl: pinctrl-pic32: Add PIC32 pin control driver 2016-02-05 23:54:47 +01:00
pinctrl-pistachio.c pinctrl: pistachio: fix mfio pll_lock pinmux 2016-08-22 15:28:35 +02:00
pinctrl-rockchip.c pinctrl: rockchip: make it explicitly non-modular 2016-08-27 13:14:21 +02:00
pinctrl-single.c pinctrl: single: Fix missing flush of posted write for a wakeirq 2016-06-22 17:58:07 +02:00
pinctrl-st.c pinctrl: st: don't specify default interrupt trigger 2016-10-31 21:25:15 +01:00
pinctrl-tb10x.c pinctrl: tb10x: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:25 +02:00
pinctrl-tz1090-pdc.c pinctrl: tz1090-pdc: Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:26 +02:00
pinctrl-tz1090.c pinctrl: tz1090 Use devm_pinctrl_register() for pinctrl registration 2016-04-21 09:23:26 +02:00
pinctrl-u300.c pinctrl: u300: make u300_pmx_registers static 2016-06-13 09:27:43 +02:00
pinctrl-utils.c pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map 2016-04-01 15:06:36 +02:00
pinctrl-utils.h pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map 2016-04-01 15:06:36 +02:00
pinctrl-xway.c This is the bulk of pin control changes for the v4.8 kernel cycle. 2016-07-28 17:06:51 -07:00
pinctrl-zynq.c pinctrl: zynq: fix typo in sdio1_3_grp pin list 2016-09-06 00:49:00 +02:00
pinmux.c pinctrl: return -ENOMEM instead of -EINVAL for kasprintf() failure 2016-05-31 10:33:00 +02:00
pinmux.h