media: venus: init registered list on streamoff
Add missing init_list_head for the registered buffer list. Absence of the init could lead to a unhandled kernel paging request as below, when streamon/streamoff are called in row. [338046.571321] Unable to handle kernel paging request at virtual address fffffffffffffe00 [338046.574849] pgd = ffff800034820000 [338046.582381] [fffffffffffffe00] *pgd=00000000b60f5003[338046.582545] , *pud=00000000b1f31003 , *pmd=0000000000000000[338046.592082] [338046.597754] Internal error: Oops: 96000004 [#1] PREEMPT SMP [338046.601671] Modules linked in: venus_enc venus_dec venus_core usb_f_ecm g_ether usb_f_rndis u_ether libcomposite ipt_MASQUERADE nf_nat_masquerade_ipv4 arc4 wcn36xx mac80211 btqcomsmd btqca iptable_nat nf_co] [338046.662408] CPU: 0 PID: 5433 Comm: irq/160-venus Tainted: G W 4.9.39+ #232 [338046.668024] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [338046.675268] task: ffff80003541cb00 task.stack: ffff800026e20000 [338046.682097] PC is at venus_helper_release_buf_ref+0x28/0x88 [venus_core] [338046.688282] LR is at vdec_event_notify+0xe8/0x150 [venus_dec] [338046.695029] pc : [<ffff000000af6c48>] lr : [<ffff000000a6fc60>] pstate: a0000145 [338046.701256] sp : ffff800026e23bc0 [338046.708494] x29: ffff800026e23bc0 x28: 0000000000000000 [338046.718853] x27: ffff000000afd4f8 x26: ffff800031faa700 [338046.729253] x25: ffff000000afd790 x24: ffff800031faa618 [338046.739664] x23: ffff800003e18138 x22: ffff800002fc9810 [338046.750109] x21: ffff800026e23c28 x20: 0000000000000001 [338046.760592] x19: ffff80002a13b800 x18: 0000000000000010 [338046.771099] x17: 0000ffffa3d01600 x16: ffff000008100428 [338046.781654] x15: 0000000000000006 x14: ffff000089045ba7 [338046.792250] x13: ffff000009045bb6 x12: 00000000004f37c8 [338046.802894] x11: 0000000000267211 x10: 0000000000000000 [338046.813574] x9 : 0000000000032000 x8 : 00000000dc400000 [338046.824274] x7 : 0000000000000000 x6 : ffff800031faa728 [338046.835005] x5 : ffff80002a13b850 x4 : 0000000000000000 [338046.845793] x3 : fffffffffffffdf8 x2 : 0000000000000000 [338046.856602] x1 : 0000000000000003 x0 : ffff80002a13b800 Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -682,6 +682,7 @@ void venus_helper_vb2_stop_streaming(struct vb2_queue *q)
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hfi_session_abort(inst);
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load_scale_clocks(core);
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INIT_LIST_HEAD(&inst->registeredbufs);
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}
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venus_helper_buffers_done(inst, VB2_BUF_STATE_ERROR);
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