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| author | Adheer Chandravanshi <adheer.chandravanshi@qlogic.com> | 2013-04-17 05:15:28 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-05-02 12:27:33 -0700 |
| commit | 1bcb56190353f12aa99e455658760d25b07e4646 (patch) | |
| tree | 88952c1942db740ad61ac9fc804aeb96212d5588 | |
| parent | 28e02f1ad838fdf7eebea69c9fc752cd164910da (diff) | |
| download | blackbird-op-linux-1bcb56190353f12aa99e455658760d25b07e4646.tar.gz blackbird-op-linux-1bcb56190353f12aa99e455658760d25b07e4646.zip | |
[SCSI] qla4xxx: Fix smatch warnings
Fix following smatch warnings:-
drivers/scsi/qla4xxx/ql4_os.c:6573
qla4xxx_sysfs_ddb_set_param() warn: possible memory leak of 'fw_ddb_entry'
drivers/scsi/qla4xxx/ql4_os.c:6596
qla4xxx_sysfs_ddb_delete() warn: variable dereferenced before check 'fnode_sess'
(see line 6584)
drivers/scsi/qla4xxx/ql4_os.c:6632
qla4xxx_sysfs_ddb_delete() error: potential NULL dereference 'fw_ddb_entry'.
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 3682fbd62d05..7f13caa8f502 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -6366,20 +6366,11 @@ qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); - struct dev_db_entry *fw_ddb_entry = NULL; struct iscsi_flashnode_param_info *fnode_param; struct nlattr *attr; int rc = QLA_ERROR; uint32_t rem = len; - fw_ddb_entry = kzalloc(sizeof(*fw_ddb_entry), GFP_KERNEL); - if (!fw_ddb_entry) { - DEBUG2(ql4_printk(KERN_ERR, ha, - "%s: Unable to allocate ddb buffer\n", - __func__)); - return -ENOMEM; - } - nla_for_each_attr(attr, data, len, rem) { fnode_param = nla_data(attr); @@ -6593,11 +6584,6 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) int target_id; int rc = 0; - if (!fnode_sess) { - rc = -EINVAL; - goto exit_ddb_del; - } - if (fnode_sess->is_boot_target) { rc = -EPERM; DEBUG2(ql4_printk(KERN_ERR, ha, @@ -6629,8 +6615,7 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry)); - dev_db_start_offset += (void *)&(fw_ddb_entry->cookie) - - (void *)fw_ddb_entry; + dev_db_start_offset += offsetof(struct dev_db_entry, cookie); ddb_size = sizeof(*ddb_cookie); } |
