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| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2016-05-12 10:48:48 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-05-13 13:37:21 -0400 |
| commit | f83b2561a6d4ff12959660ad597580097b744941 (patch) | |
| tree | 89ec55407bc6c4b562b75892099257c492bfaddc /include/rdma | |
| parent | 9d8e7d0dacf09ddac7e617d17dbeec6af56e81e8 (diff) | |
| download | lwn-f83b2561a6d4ff12959660ad597580097b744941.tar.gz lwn-f83b2561a6d4ff12959660ad597580097b744941.zip | |
IB/srp: Fix srp_create_target() error handling
Avoid that the following kernel oops occurs if memory pool
allocation fails:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa048d0a0>] ib_drain_rq+0x0/0x20 [ib_core]
Call Trace:
[<ffffffffa04af386>] srp_create_target+0xca6/0x13a9 [ib_srp]
[<ffffffff813cc863>] dev_attr_store+0x13/0x20
[<ffffffff81214b50>] sysfs_kf_write+0x40/0x50
[<ffffffff81213f1c>] kernfs_fop_write+0x13c/0x180
[<ffffffff81197683>] __vfs_write+0x23/0xf0
[<ffffffff81198744>] vfs_write+0xa4/0x1a0
[<ffffffff81199a44>] SyS_write+0x44/0xa0
[<ffffffff8159e3e9>] entry_SYSCALL_64_fastpath+0x1c/0xac
Fixes: 1dc7b1f10dcb ("IB/srp: use the new CQ API")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
0 files changed, 0 insertions, 0 deletions