RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo()
authorGeert Uytterhoeven <geert@linux-m68k.org>
Wed, 29 Nov 2017 08:47:33 +0000 (09:47 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 24 Mar 2018 10:01:22 +0000 (11:01 +0100)
commite53e85d5082cb208157b64b24812211d17801157
treead3f43bc501c1e69aa1dcb732b034931d767a64b
parent4df82a41e819133194e015c14424ae4e96ca061f
RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo()

[ Upstream commit 302d6424e4a293a5761997e6c9fc3dfb1e4c355f ]

With gcc-4.1.2:

    drivers/infiniband/core/iwpm_util.c: In function ‘iwpm_send_mapinfo’:
    drivers/infiniband/core/iwpm_util.c:647: warning: ‘ret’ may be used uninitialized in this function

Indeed, if nl_client is not found in any of the scanned has buckets, ret
will be used uninitialized.

Preinitialize ret to -EINVAL to fix this.

Fixes: 30dc5e63d6a5ad24 ("RDMA/core: Add support for iWARP Port Mapper user space service")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/infiniband/core/iwpm_util.c