GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-30 02:21:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

IB/uverbs: Fix unlocking in error paths

Browse source 
ib_uverbs_create_ah() and ib_uverbs_create_srq() did not release the
PD's read lock in their error paths, which lead to deadlock when
destroying the PD.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Michael S. Tsirkin 2006-07-17 18:20:51 +03:00 • committed by Roland Dreier
parent abb5a5cc6b
commit ec924b4726
1 changed files with 8 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

10
drivers/infiniband/core/uverbs_cmd.c
View file

@ -1775,7 +1775,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
ah = ib_create_ah(pd, &attr); ah = ib_create_ah(pd, &attr);
if (IS_ERR(ah)) { if (IS_ERR(ah)) {
ret = PTR_ERR(ah); ret = PTR_ERR(ah);
goto err; goto err_put;
} }
ah->uobject = uobj; ah->uobject = uobj;
@ -1811,6 +1811,9 @@ err_copy:
err_destroy: err_destroy:
ib_destroy_ah(ah); ib_destroy_ah(ah);
err_put:
put_pd_read(pd);
err: err:
put_uobj_write(uobj); put_uobj_write(uobj);
return ret; return ret;
@ -1984,7 +1987,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
srq = pd->device->create_srq(pd, &attr, &udata); srq = pd->device->create_srq(pd, &attr, &udata);
if (IS_ERR(srq)) { if (IS_ERR(srq)) {
ret = PTR_ERR(srq); ret = PTR_ERR(srq);
goto err; goto err_put;
} }
srq->device = pd->device; srq->device = pd->device;
@ -2029,6 +2032,9 @@ err_copy:
err_destroy: err_destroy:
ib_destroy_srq(srq); ib_destroy_srq(srq);
err_put:
put_pd_read(pd);
err: err:
put_uobj_write(&obj->uobject); put_uobj_write(&obj->uobject);
return ret; return ret;