[PATCH] cxgb4/cudbg_lib: Use common error handling code in cudbg_collect_tid()

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Thu, 15 Mar 2018 14:56:10 +0100

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c 
b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
index 9da6f57901a9..d5b5b6221d1f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
@@ -1660,11 +1660,9 @@ int cudbg_collect_tid(struct cudbg_init *pdbg_init,
        para[0] = FW_PARAM_PFVF_A(ETHOFLD_START);
        para[1] = FW_PARAM_PFVF_A(ETHOFLD_END);
        rc = t4_query_params(padap, padap->mbox, padap->pf, 0, 2, para, val);
-       if (rc <  0) {
-               cudbg_err->sys_err = rc;
-               cudbg_put_buff(pdbg_init, &temp_buff);
-               return rc;
-       }
+       if (rc < 0)
+               goto put_buffer;
+
        tid->uotid_base = val[0];
        tid->nuotids = val[1] - val[0] + 1;
 
@@ -1679,11 +1677,9 @@ int cudbg_collect_tid(struct cudbg_init *pdbg_init,
                para[1] = FW_PARAM_PFVF_A(HPFILTER_END);
                rc = t4_query_params(padap, padap->mbox, padap->pf, 0, 2,
                                     para, val);
-               if (rc < 0) {
-                       cudbg_err->sys_err = rc;
-                       cudbg_put_buff(pdbg_init, &temp_buff);
-                       return rc;
-               }
+               if (rc < 0)
+                       goto put_buffer;
+
                tid->hpftid_base = val[0];
                tid->nhpftids = val[1] - val[0] + 1;
        }
@@ -1711,6 +1707,11 @@ int cudbg_collect_tid(struct cudbg_init *pdbg_init,
        tid->ipv6_users = t4_read_reg(padap, LE_DB_ACT_CNT_IPV6_A);
 
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
+
+put_buffer:
+       cudbg_put_buff(pdbg_init, &temp_buff);
+       cudbg_err->sys_err = rc;
+       return rc;
 }
 
 int cudbg_collect_pcie_config(struct cudbg_init *pdbg_init,
-- 
2.16.2