Commits
Ming Lei committed 4ba7c3c3c65
ARM: OMAP3+: fix oops triggered in omap_prcm_register_chain_handler(v1) This patch fixes the oops below[1]. Obviously, the count of "struct irq_chip_generic" instances to be allocated and setup should be irq_setup->nr_regs instead of irq_setup->nr_regs plus one, so just fix the iterator to avoid the oops. [1], oops log. [ 1.790242] Unable to handle kernel NULL pointer dereference at virtual address 00000004 [ 1.798632] pgd = c0004000 [ 1.801638] [00000004] *pgd=00000000 [ 1.805400] Internal error: Oops: 805 [#1] PREEMPT SMP THUMB2 [ 1.811381] Modules linked in: [ 1.814601] CPU: 1 Not tainted (3.3.0-next-20120320+ #733) [ 1.820683] PC is at irq_setup_generic_chip+0x6a/0x84 [ 1.825951] LR is at irq_get_irq_data+0x7/0x8 [ 1.830508] pc : [<c006465e>] lr : [<c0063a03>] psr: 20000133 [ 1.830512] sp : ee04ff58 ip : 00000000 fp : 00000000 [ 1.842461] r10: 00000000 r9 : 00000000 r8 : 00000800 [ 1.847905] r7 : c064e260 r6 : 000001dc r5 : 00000001 r4 : ee0accc0 [ 1.854687] r3 : 00000002 r2 : 00000800 r1 : 000001dc r0 : 00000000 [ 1.861472] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA Thumb Segment kernel [ 1.869234] Control: 50c5387d Table: 8000404a DAC: 00000015 [ 1.875215] Process swapper/0 (pid: 1, stack limit = 0xee04e2f8) [ 1.881463] Stack: (0xee04ff58 to 0xee050000) [ 1.886017] ff40: c061b668 00000008 [ 1.894497] ff60: c0682090 ee0accc0 00000003 c001c637 00000000 00000000 00000201 00000000 [ 1.902976] ff80: 00000004 c0473820 c0473800 c0459e8d c0680ac0 c000866d 00000004 00000004 [ 1.911455] ffa0: ee04ffa8 00000004 c047381c 00000004 c0473820 c0473800 c0680ac0 00000082 [ 1.919934] ffc0: c0489694 c045265f 00000004 00000004 c0452135 c000d105 00000033 00000000 [ 1.928413] ffe0: c04525b5 c000d111 00000033 00000000 00000000 c000d111 aaaaaaaa aaaaaaaa [ 1.936912] [<c006465e>] (irq_setup_generic_chip+0x6a/0x84) from [<c001c637>] (omap_prcm_register_chain_handler+0x147/0x1a0) [ 1.948516] [<c001c637>] (omap_prcm_register_chain_handler+0x147/0x1a0) from [<c000866d>] (do_one_initcall+0x65/0xf4) [ 1.959500] [<c000866d>] (do_one_initcall+0x65/0xf4) from [<c045265f>] (kernel_init+0xab/0x138) [ 1.968529] [<c045265f>] (kernel_init+0xab/0x138) from [<c000d111>] (kernel_thread_exit+0x1/0x6) [ 1.977632] Code: f7ff f9d1 6b23 1af3 (6043) 086d [ 1.982684] ---[ end trace 1b75b31a2719ed1c ]--- [ 1.987526] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Kevin Hilman <khilman@ti.com>