IB/rdmavt: Fix sizeof mismatch

[ Upstream commit 8e71f694e0c819db39af2336f16eb9689f1ae53f ]

An incorrect sizeof is being used, struct rvt_ibport ** is not correct, it
should be struct rvt_ibport *. Note that since ** is the same size as
* this is not causing any issues.  Improve this fix by using
sizeof(*rdi->ports) as this allows us to not even reference the type
of the pointer.  Also remove line breaks as the entire statement can
fit on one line.

Link: https://lore.kernel.org/r/20201008095204.82683-1-colin.king@canonical.com
Addresses-Coverity: ("Sizeof not portable (SIZEOF_MISMATCH)")
Fixes: ff6acd69518e ("IB/rdmavt: Add device structure allocation")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index 64bdd442078a13b32a77a03e04c8a87724de275f..03a367db38e6d480bc8f4a907c884e86c166edb2 100644 (file)
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -97,9 +97,7 @@ struct rvt_dev_info *rvt_alloc_device(size_t size, int nports)
        if (!rdi)
                return rdi;
 
-       rdi->ports = kcalloc(nports,
-                            sizeof(struct rvt_ibport **),
-                            GFP_KERNEL);
+       rdi->ports = kcalloc(nports, sizeof(*rdi->ports), GFP_KERNEL);
        if (!rdi->ports)
                ib_dealloc_device(&rdi->ibdev);