[ewg] [PATCH ofed-1.2] ehca (kernel space): return proper error code if register_mr fails

[Hoang-Nam Nguyen]

Hello Tziporet!
Please accept below patch for ofed-1.2, because it fixes a mr resources
limitation problem reported by Troy and Kyle on this mailing list. Only
with this patch their application is able to release no longer used mrs
properly.
Thanks!
Regards
Nam



This patch sets the return code of ehca_register_mr() to ENOMEM
if corresponding firmware call fails due to out of resources.
Some of error codes were mapped to EINVAL. They are now mapped
to default case, which already returns EINVAL anyway.


Signed-off-by: Hoang-Nam Nguyen <hnguyen at de.ibm.com>
---


 ehca_mrmw.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)


diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c
index cfb362a..b3bbe3b 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -2045,13 +2045,10 @@ int ehca_mrmw_map_hrc_alloc(const u64 hi
 	switch (hipz_rc) {
 	case H_SUCCESS:	             /* successful completion */
 		return 0;
-	case H_ADAPTER_PARM:         /* invalid adapter handle */
-	case H_RT_PARM:              /* invalid resource type */
 	case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */
-	case H_MLENGTH_PARM:         /* invalid memory length */
-	case H_MEM_ACCESS_PARM:      /* invalid access controls */
 	case H_CONSTRAINED:          /* resource constraint */
-		return -EINVAL;
+	case H_NO_MEM:
+		return -ENOMEM;
 	case H_BUSY:                 /* long busy */
 		return -EBUSY;
 	default: