Anson Huang 1bcbe73008 soc: imx8: Fix potential kernel dump in error path ... When SoC's revision value is 0, SoC driver will print out "unknown" in sysfs's revision node, this "unknown" is a static string which can NOT be freed, this will caused below kernel dump in later error path which calls kfree: kernel BUG at mm/slub.c:3942! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc4-next-20190611-00023-g705146c-dirty #2197 Hardware name: NXP i.MX8MQ EVK (DT) pstate: 60000005 (nZCv daif -PAN -UAO) pc : kfree+0x170/0x1b0 lr : imx8_soc_init+0xc0/0xe4 sp : ffff00001003bd10 x29: ffff00001003bd10 x28: ffff00001121e0a0 x27: ffff000011482000 x26: ffff00001117068c x25: ffff00001121e100 x24: ffff000011482000 x23: ffff000010fe2b58 x22: ffff0000111b9ab0 x21: ffff8000bd9dfba0 x20: ffff0000111b9b70 x19: ffff7e000043f880 x18: 0000000000001000 x17: ffff000010d05fa0 x16: ffff0000122e0000 x15: 0140000000000000 x14: 0000000030360000 x13: ffff8000b94b5bb0 x12: 0000000000000038 x11: ffffffffffffffff x10: ffffffffffffffff x9 : 0000000000000003 x8 : ffff8000b9488147 x7 : ffff00001003bc00 x6 : 0000000000000000 x5 : 0000000000000003 x4 : 0000000000000003 x3 : 0000000000000003 x2 : b8793acd604edf00 x1 : ffff7e000043f880 x0 : ffff7e000043f888 Call trace: kfree+0x170/0x1b0 imx8_soc_init+0xc0/0xe4 do_one_initcall+0x58/0x1b8 kernel_init_freeable+0x1cc/0x288 kernel_init+0x10/0x100 ret_from_fork+0x10/0x18 This patch fixes this potential kernel dump when a chip's revision is "unknown", it is done by checking whether the revision space can be freed. Fixes: a7e26f356c ("soc: imx: Add generic i.MX8 SoC driver") Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>		2019-06-18 16:59:34 +08:00
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actions	soc: actions: sps: Add S900 power domains	2018-09-30 16:48:10 +02:00
amlogic	soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A	2019-04-16 11:09:53 -07:00
aspeed	ARM: SoC-related driver updates	2019-05-16 09:19:14 -07:00
atmel	ARM: at91: add support in soc driver for new SAM9X60	2018-12-12 11:55:20 +01:00
bcm	This pull request brings in a build fix for arm64 with bcm2835	2019-03-18 10:31:24 -07:00
dove	soc: Convert to using %pOFn instead of device_node.name	2018-10-04 14:16:01 -05:00
fsl	soc/fsl/qe: Fix an error code in qe_pin_request()	2019-04-02 18:02:48 -05:00
gemini	soc: Add SoC driver for Gemini	2018-01-04 17:01:53 +01:00
imx	soc: imx8: Fix potential kernel dump in error path	2019-06-18 16:59:34 +08:00
ixp4xx	soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe	2019-05-16 10:53:11 -07:00
lantiq	MIPS: lantiq: Remove separate GPHY Firmware loader	2019-02-25 14:17:10 -08:00
mediatek	soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher	2019-04-12 21:57:49 +02:00
qcom	drivers: soc: qcom: rpmh-rsc: Correct check for slot number	2019-04-09 23:40:09 -05:00
renesas	soc: renesas: Identify R-Car M3-W ES1.3	2019-03-18 10:33:42 +01:00
rockchip	soc: rockchip: Set the proper PWM for rk3288	2019-04-11 13:40:32 +02:00
samsung	soc: samsung: pm_domains: Deprecate support for clocks	2018-04-17 17:25:42 +02:00
sunxi	soc: sunxi: Fix missing dependency on REGMAP_MMIO	2019-04-30 17:55:08 +02:00
tegra	soc/tegra: pmc: Move powergate initialisation to probe	2019-04-17 10:32:33 +02:00
ti	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-05-19 10:58:45 -07:00
ux500
versatile	soc: versatile: remove unnecessary static in realview_soc_probe()	2017-08-16 22:28:27 +02:00
xilinx	drivers: Defer probe if firmware is not ready	2019-03-18 13:45:27 +01:00
zte	soc: zte: Restrict SOC_ZTE to ARCH_ZX or COMPILE_TEST	2017-07-27 13:12:34 +02:00
Kconfig	ARM: SoC-related driver updates	2019-05-16 09:19:14 -07:00
Makefile	ARM: SoC-related driver updates	2019-05-16 09:19:14 -07:00