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authorMike Christie <michaelc@cs.wisc.edu>2015-04-10 02:47:27 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-19 10:11:09 +0200
commit07d3fa2cdb860b7b17a7d8ce1c2d53841c91aa71 (patch)
tree3073ee92f18b769068d4054f47a465e9c1043a5a /drivers
parent6642619b3a74771f7ace0f0a653dde628815eaeb (diff)
downloadlinux-linaro-stable-07d3fa2cdb860b7b17a7d8ce1c2d53841c91aa71.tar.gz
iscsi target: fix oops when adding reject pdu
commit b815fc12d4dd2b5586184fb4f867caff05a810d4 upstream. This fixes a oops due to a double list add when adding a reject PDU for iscsit_allocate_iovecs allocation failures. The cmd has already been added to the conn_cmd_list in iscsit_setup_scsi_cmd, so this has us call iscsit_reject_cmd. Note that for ERL0 the reject PDU is not actually sent, so this patch is not completely tested. Just verified we do not oops. The problem is the add reject functions return -1 which is returned all the way up to iscsi_target_rx_thread which for ERL0 will drop the connection. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/target/iscsi/iscsi_target.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index e168a63e77ea..b61c555a5a8f 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1165,7 +1165,7 @@ iscsit_handle_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* traditional iSCSI block I/O.
*/
if (iscsit_allocate_iovecs(cmd) < 0) {
- return iscsit_add_reject_cmd(cmd,
+ return iscsit_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
immed_data = cmd->immediate_data;