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authorBruce Ashfield <bruce.ashfield@windriver.com>2017-11-02 22:45:33 -0400
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-11-05 13:40:33 +0000
commit3a417fb86867a04b2263764a79af98eec51b4a7a (patch)
tree3ab434027a1d87868c06d563245b30938a41e37b /meta-yocto-bsp/wic
parentc7b36ffdc507fb77e511e71b07b9b5166f4ae806 (diff)
downloadpoky-3a417fb86867a04b2263764a79af98eec51b4a7a.tar.gz
linux-yocto/4.12: ide:ide-cd: fix kernel panic resulting from missing scsi_req_init
Integrating a backport of upstream commit: ide:ide-cd: fix kernel panic resulting from missing scsi_req_init commit 79d73346ac05bc31 upstream Since we split the scsi_request out of struct request, while the standard prep_rq_fn builds 10 byte cmds, it missed to invoke scsi_req_init() to initialize certain fields of a scsi_request structure (.__cmd[], .cmd, .cmd_len and .sense_len but no other members of struct scsi_request). An example panic on virtual machines (qemu/virtualbox) to boot from IDE cdrom: ... [ 8.754381] Call Trace: [ 8.755419] blk_peek_request+0x182/0x2e0 [ 8.755863] blk_fetch_request+0x1c/0x40 [ 8.756148] ? ktime_get+0x40/0xa0 [ 8.756385] do_ide_request+0x37d/0x660 [ 8.756704] ? cfq_group_service_tree_add+0x98/0xc0 [ 8.757011] ? cfq_service_tree_add+0x1e5/0x2c0 [ 8.757313] ? ktime_get+0x40/0xa0 [ 8.757544] __blk_run_queue+0x3d/0x60 [ 8.757837] queue_unplugged+0x2f/0xc0 [ 8.758088] blk_flush_plug_list+0x1f4/0x240 [ 8.758362] blk_finish_plug+0x2c/0x40 ... [ 8.770906] RIP: ide_cdrom_prep_fn+0x63/0x180 RSP: ffff92aec018bae8 [ 8.772329] ---[ end trace 6408481e551a85c9 ]--- ... Fixes: 82ed4db499b8 ("block: split scsi_request out of struct request") Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> [bva: modified for 4.12 context] Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> (From OE-Core rev: 089dc30e11a5bbd10bf6bebea6aa0ac2173bc9a3) Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta-yocto-bsp/wic')
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