IB/ehca: Catch failing ioremap()

When ioremap() fails with a NULL pointer, catch the error and pass it
to the caller of create_qp() or create_cq() instead of trying to
dereference the NULL pointer later on.

Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.h b/drivers/infiniband/hw/ehca/hcp_phyp.h
index 204227d5303a..d1b029910249 100644
--- a/drivers/infiniband/hw/ehca/hcp_phyp.h
+++ b/drivers/infiniband/hw/ehca/hcp_phyp.h
@@ -83,7 +83,7 @@ int hcp_galpas_ctor(struct h_galpas *galpas, int is_user,
 
 int hcp_galpas_dtor(struct h_galpas *galpas);
 
-int hcall_map_page(u64 physaddr, u64 * mapaddr);
+u64 hcall_map_page(u64 physaddr);
 
 int hcall_unmap_page(u64 mapaddr);