Commits
Inderpal Singh committed 3ef303988cf
regulator: s5m8767: Fix probe failure due to stack corruption The function sec_reg_read invokes regmap_read which expects unsigned int * as the destination address. The existing driver is passing address of local variable "val" which is u8. This causes the stack corruption and following dump is observed during probe. Hence change "val" from u8 to unsigned int. Unable to handle kernel paging request at virtual address 02410020 pgd = c0004000 [02410020] *pgd=00000000 Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 Not tainted (3.6.0-00696-g98a28b18-dirty #27) PC is at 0x2410020 LR is at _regulator_get_voltage+0x3c/0x70 pc : [<02410020>] lr : [<c02395d4>] psr: 20000013 sp : cf839b68 ip : 00000000 fp : cf92d410 r10: 0000cfd0 r9 : c06d9878 r8 : 0000f0a0 r7 : cf839b70 r6 : cf92d400 r5 : 00000011 r4 : cf000000 r3 : 02410020 r2 : 00000000 r1 : 00000048 r0 : cf000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel ........................... ................................. [<c02395d4>] (_regulator_get_voltage+0x3c/0x70) from [<c023ad80>] (print_constraints+0x50/0x36c) [<c023ad80>] (print_constraints+0x50/0x36c) from [<c023e504>] (set_machine_constraints+0xe8/0x2b0) [<c023e504>] (set_machine_constraints+0xe8/0x2b0) from [<c023e9c8>] (regulator_register+0x2fc/0x604) [<c023e9c8>] (regulator_register+0x2fc/0x604) from [<c049d628>] (s5m8767_pmic_probe+0x688/0x718) [<c049d628>] (s5m8767_pmic_probe+0x688/0x718) from [<c029915c>] (platform_drv_probe+0x18/0x1c) [<c029915c>] (platform_drv_probe+0x18/0x1c) from [<c0297dd0>] (really_probe+0x68/0x1f4) [<c0297dd0>] (really_probe+0x68/0x1f4) from [<c0298070>] (driver_probe_device+0x30/0x48) Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>