NTB: perf: Fix an error code in perf_setup_inbuf()

When the function IS_ALIGNED() returns false, the value of ret is 0.
So, we set ret to -EINVAL to indicate this error.

Clean up smatch warning:
drivers/ntb/test/ntb_perf.c:602 perf_setup_inbuf() warn: missing error
code 'ret'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 89df135..65e1e5c 100644 (file)
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -598,6 +598,7 @@ static int perf_setup_inbuf(struct perf_peer *peer)
                return -ENOMEM;
        }
        if (!IS_ALIGNED(peer->inbuf_xlat, xlat_align)) {
+               ret = -EINVAL;
                dev_err(&perf->ntb->dev, "Unaligned inbuf allocated\n");
                goto err_free_inbuf;
        }