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IB/hfi1: Fix resource release in context allocation 

Correct resource free in allocate_ctxt() function.
When context creation fails allocated resources are properly
released and pointer in receive context data table is set back
to NULL.

Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jakub Pawlak 2016-09-25 07:42:23 -07:00 committed by Doug Ledford
parent 242833fbe4
commit 3a6982dfd3
2 changed files with 13 additions and 5 deletions
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17
drivers/infiniband/hw/hfi1/file_ops.c
View File

@ -978,14 +978,16 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
*/
uctxt->sc = sc_alloc(dd, SC_USER, uctxt->rcvhdrqentsize,
uctxt->dd->node);
if (!uctxt->sc)
return -ENOMEM;
if (!uctxt->sc) {
ret = -ENOMEM;
goto ctxdata_free;
}
hfi1_cdbg(PROC, "allocated send context %u(%u)\n", uctxt->sc->sw_index,
uctxt->sc->hw_context);
ret = sc_enable(uctxt->sc);
if (ret)
return ret;
goto ctxdata_free;
/*
* Setup shared context resources if the user-level has requested
* shared contexts and this is the 'master' process.
@ -999,7 +1001,7 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
* send context because it will be done during file close
*/
if (ret)
return ret;
goto ctxdata_free;
}
uctxt->userversion = uinfo->userversion;
uctxt->flags = hfi1_cap_mask; /* save current flag state */
@ -1019,6 +1021,11 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
fd->uctxt = uctxt;
return 0;
ctxdata_free:
dd->rcd[ctxt] = NULL;
hfi1_free_ctxtdata(dd, uctxt);
return ret;
}
static int init_subctxts(struct hfi1_ctxtdata *uctxt,

1
drivers/infiniband/hw/hfi1/init.c
View File

@ -336,6 +336,7 @@ struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, u32 ctxt,
}
return rcd;
bail:
dd->rcd[ctxt] = NULL;
kfree(rcd->egrbufs.rcvtids);
kfree(rcd->egrbufs.buffers);
kfree(rcd);