IB/qib: Remove redundant assignment to ret

Variable 'ret' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant assignment
and can be removed.

Clean up the following clang-analyzer warning:

drivers/infiniband/hw/qib/qib_sd7220.c:690:2: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores]

Link: https://lore.kernel.org/r/1619692940-104771-1-git-send-email-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c
index 4f4a09c..81b810d 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_sd7220.c
+++ b/drivers/infiniband/hw/qib/qib_sd7220.c
@@ -687,7 +687,6 @@ static int qib_sd7220_reg_mod(struct qib_devdata *dd, int sdnum, u32 loc,
                spin_unlock_irqrestore(&dd->cspec->sdepb_lock, flags);
                return -1;
        }
-       ret = 0;
        for (tries = EPB_TRANS_TRIES; tries; --tries) {
                transval = qib_read_kreg32(dd, trans);
                if (transval & EPB_TRANS_RDY)