[Qemu-devel] [PATCH] iscsi: Fix check for username

[Stefan Weil <sw@weilnetz.de>]

The variable user in struct iscsi_url is a character array, not a pointer.
Therefore its address will never be NULL.

clang reports this error:

block/iscsi.c:1329:20: warning:
 comparison of array 'iscsi_url->user' not equal to a null pointer
 is always true [-Wtautological-pointer-compare]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
---

This error also exists in libscsi. See my pull request
https://github.com/sahlberg/libiscsi/pull/146

Cheers
Stefan

 block/iscsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/iscsi.c b/block/iscsi.c
index 1fa855a..a2bd70a 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1326,7 +1326,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
         goto out;
     }
 
-    if (iscsi_url->user != NULL) {
+    if (iscsi_url->user[0] != '\0') {
         ret = iscsi_set_initiator_username_pwd(iscsi, iscsi_url->user,
                                               iscsi_url->passwd);
         if (ret != 0) {
-- 
2.1.4