[PATCH 046/270] iscsit: remove incorrect unlock in iscsit_build_sendtargets_resp

From: Herton Ronaldo Krzesinski
Date: Mon Nov 26 2012 - 12:02:28 EST


3.5.7u1 -stable review patch. If anyone has any objections, please let me know.

------------------

From: Christoph Hellwig <hch@xxxxxxxxxxxxx>

commit 904753da183566c71211d23c169a80184648c121 upstream.

Fix a potential multiple spin-unlock -> deadlock scenario during the
overflow check within iscsit_build_sendtargets_resp() as found by
sparse static checking.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@xxxxxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index d3114d1..6d1d906 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3269,7 +3269,6 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
len += 1;

if ((len + payload_len) > buffer_len) {
- spin_unlock(&tiqn->tiqn_tpg_lock);
end_of_buf = 1;
goto eob;
}
--
1.7.9.5

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