Timo Alho 67c2be1605 soc/tegra: fuse: Fix illegal free of IO base address ... [ Upstream commit 51294bf6b9 ] On cases where device tree entries for fuse and clock provider are in different order, fuse driver needs to defer probing. This leads to freeing incorrect IO base address as the fuse->base variable gets overwritten once during first probe invocation. This leads to the following spew during boot: [ 3.082285] Trying to vfree() nonexistent vm area (00000000cfe8fd94) [ 3.082308] WARNING: CPU: 5 PID: 126 at /hdd/l4t/kernel/stable/mm/vmalloc.c:1511 __vunmap+0xcc/0xd8 [ 3.082318] Modules linked in: [ 3.082330] CPU: 5 PID: 126 Comm: kworker/5:1 Tainted: G S 4.19.7-tegra-gce119d3 #1 [ 3.082340] Hardware name: quill (DT) [ 3.082353] Workqueue: events deferred_probe_work_func [ 3.082364] pstate: 40000005 (nZcv daif -PAN -UAO) [ 3.082372] pc : __vunmap+0xcc/0xd8 [ 3.082379] lr : __vunmap+0xcc/0xd8 [ 3.082385] sp : ffff00000a1d3b60 [ 3.082391] x29: ffff00000a1d3b60 x28: 0000000000000000 [ 3.082402] x27: 0000000000000000 x26: ffff000008e8b610 [ 3.082413] x25: 0000000000000000 x24: 0000000000000009 [ 3.082423] x23: ffff000009221a90 x22: ffff000009f6d000 [ 3.082432] x21: 0000000000000000 x20: 0000000000000000 [ 3.082442] x19: ffff000009f6d000 x18: ffffffffffffffff [ 3.082452] x17: 0000000000000000 x16: 0000000000000000 [ 3.082462] x15: ffff0000091396c8 x14: 0720072007200720 [ 3.082471] x13: 0720072007200720 x12: 0720072907340739 [ 3.082481] x11: 0764076607380765 x10: 0766076307300730 [ 3.082491] x9 : 0730073007300730 x8 : 0730073007280720 [ 3.082501] x7 : 0761076507720761 x6 : 0000000000000102 [ 3.082510] x5 : 0000000000000000 x4 : 0000000000000000 [ 3.082519] x3 : ffffffffffffffff x2 : ffff000009150ff8 [ 3.082528] x1 : 3d95b1429fff5200 x0 : 0000000000000000 [ 3.082538] Call trace: [ 3.082545] __vunmap+0xcc/0xd8 [ 3.082552] vunmap+0x24/0x30 [ 3.082561] __iounmap+0x2c/0x38 [ 3.082569] tegra_fuse_probe+0xc8/0x118 [ 3.082577] platform_drv_probe+0x50/0xa0 [ 3.082585] really_probe+0x1b0/0x288 [ 3.082593] driver_probe_device+0x58/0x100 [ 3.082601] __device_attach_driver+0x98/0xf0 [ 3.082609] bus_for_each_drv+0x64/0xc8 [ 3.082616] __device_attach+0xd8/0x130 [ 3.082624] device_initial_probe+0x10/0x18 [ 3.082631] bus_probe_device+0x90/0x98 [ 3.082638] deferred_probe_work_func+0x74/0xb0 [ 3.082649] process_one_work+0x1e0/0x318 [ 3.082656] worker_thread+0x228/0x450 [ 3.082664] kthread+0x128/0x130 [ 3.082672] ret_from_fork+0x10/0x18 [ 3.082678] ---[ end trace 0810fe6ba772c1c7 ]--- Fix this by retaining the value of fuse->base until driver has successfully probed. Signed-off-by: Timo Alho <talho@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-04-05 22:33:14 +02:00
..
actions	treewide: Use struct_size() for devm_kmalloc() and friends	2018-06-06 11:15:43 -07:00
amlogic	amlogic: meson-gx-socinfo: Update soc ids	2018-03-19 16:40:26 -07:00
atmel	drivers: soc: atmel: Add basic support for new sama5d2 SiPs	2017-09-17 19:45:59 +02:00
bcm	soc: bcm: brcmstb: Don't leak device tree node reference	2019-02-12 19:47:03 +01:00
dove	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fsl	soc: fsl: qbman: avoid race in clearing QMan interrupt	2019-03-13 14:02:33 -07:00
gemini	soc: Add SoC driver for Gemini	2018-01-04 17:01:53 +01:00
imx	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
lantiq	MIPS: lantiq: gphy: Drop reboot/remove reset asserts	2018-05-24 13:22:56 +01:00
mediatek	soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs	2018-07-16 15:50:17 +02:00
qcom	soc: qcom: gsbi: Fix error handling in gsbi_probe()	2019-04-05 22:33:12 +02:00
renesas	Second Round of Renesas ARM Based SoC Updates for v4.19	2018-07-21 14:19:37 -07:00
rockchip	ARM: SoC driver updates	2018-06-11 18:15:22 -07:00
samsung	soc: samsung: pm_domains: Deprecate support for clocks	2018-04-17 17:25:42 +02:00
sunxi	soc: sunxi: Add the A13, A23 and H3 system control compatibles	2018-07-19 16:39:12 +02:00
tegra	soc/tegra: fuse: Fix illegal free of IO base address	2019-04-05 22:33:14 +02:00
ti	soc: ti: QMSS: Fix usage of irq_set_affinity_hint	2018-11-21 09:19:18 +01:00
ux500
versatile	soc: versatile: remove unnecessary static in realview_soc_probe()	2017-08-16 22:28:27 +02:00
xilinx	soc: xilinx: Fix Kconfig alignment	2018-01-16 15:50:21 +01:00
zte	soc: zte: Restrict SOC_ZTE to ARCH_ZX or COMPILE_TEST	2017-07-27 13:12:34 +02:00
Kconfig	soc: xilinx: Create folder structure for soc specific drivers	2018-01-08 13:42:39 +01:00
Makefile	soc: Unconditionally include qcom Makefile	2018-05-25 15:53:57 -05:00