[PATCH] afs: Fix logically dead code in afs_update_cell

From: Gustavo A. R. Silva
Date: Mon May 27 2019 - 12:57:42 EST


Fix logically dead code in switch statement.

Notice that *ret* is updated with -ENOMEM before the switch statement
at 395:

395 switch (ret) {
396 case -ENODATA:
397 case -EDESTADDRREQ:
398 vllist->status = DNS_LOOKUP_GOT_NOT_FOUND;
399 break;
400 case -EAGAIN:
401 case -ECONNREFUSED:
402 vllist->status = DNS_LOOKUP_GOT_TEMP_FAILURE;
403 break;
404 default:
405 vllist->status = DNS_LOOKUP_GOT_LOCAL_FAILURE;
406 break;
407 }

hence, the code in the switch (except for the default case) makes
no sense and is logically dead.

Fix this by removing the *ret* assignment at 390:

390 ret = -ENOMEM;

which is apparently wrong.

Addresses-Coverity-ID: 1445439 ("Logically dead code")
Fixes: d5c32c89b208 ("afs: Fix cell DNS lookup")
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
fs/afs/cell.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 9c3b07ba2222..980de60bf060 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -387,7 +387,6 @@ static int afs_update_cell(struct afs_cell *cell)
if (ret == -ENOMEM)
goto out_wake;

- ret = -ENOMEM;
vllist = afs_alloc_vlserver_list(0);
if (!vllist)
goto out_wake;
--
2.21.0