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-rw-r--r--fs/cifs/cifs_debug.c6
-rw-r--r--fs/cifs/cifsglob.h9
-rw-r--r--fs/cifs/cifsproto.h7
-rw-r--r--fs/cifs/connect.c17
-rw-r--r--fs/cifs/fs_context.c19
-rw-r--r--fs/cifs/ioctl.c3
-rw-r--r--fs/cifs/smb2misc.c11
-rw-r--r--fs/cifs/smb2ops.c52
-rw-r--r--fs/cifs/smb2pdu.c10
-rw-r--r--fs/cifs/transport.c43
10 files changed, 118 insertions, 59 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index e7501533c2ec..dd39097027b5 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -183,6 +183,8 @@ static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) {
list_for_each(tmp, &server->smb_ses_list) {
ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
+ if (cifs_ses_exiting(ses))
+ continue;
list_for_each(tmp1, &ses->tcon_list) {
tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
spin_lock(&tcon->open_file_lock);
@@ -380,6 +382,8 @@ skip_rdma:
list_for_each(tmp2, &server->smb_ses_list) {
ses = list_entry(tmp2, struct cifs_ses,
smb_ses_list);
+ if (ses->status == CifsExiting)
+ continue;
i++;
if ((ses->serverDomain == NULL) ||
(ses->serverOS == NULL) ||
@@ -609,6 +613,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
list_for_each(tmp2, &server->smb_ses_list) {
ses = list_entry(tmp2, struct cifs_ses,
smb_ses_list);
+ if (cifs_ses_exiting(ses))
+ continue;
list_for_each(tmp3, &ses->tcon_list) {
tcon = list_entry(tmp3,
struct cifs_tcon,
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 2ee67a27020d..68b9b382d44b 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1719,6 +1719,7 @@ static inline bool is_retryable_error(int error)
#define MID_RETRY_NEEDED 8 /* session closed while this request out */
#define MID_RESPONSE_MALFORMED 0x10
#define MID_SHUTDOWN 0x20
+#define MID_RESPONSE_READY 0x40 /* ready for other process handle the rsp */
/* Flags */
#define MID_WAIT_CANCELLED 1 /* Cancelled while waiting for response */
@@ -2041,4 +2042,12 @@ static inline struct scatterlist *cifs_sg_set_buf(struct scatterlist *sg,
return sg;
}
+static inline bool cifs_ses_exiting(struct cifs_ses *ses)
+{
+ bool ret;
+
+ ret = ses->status == CifsExiting;
+ return ret;
+}
+
#endif /* _CIFS_GLOB_H */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 50844d51da5d..7d00802f9722 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -83,7 +83,7 @@ extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
struct TCP_Server_Info *server);
extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
extern void cifs_delete_mid(struct mid_q_entry *mid);
-extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
+void _cifs_mid_q_entry_release(struct kref *refcount);
extern void cifs_wake_up_task(struct mid_q_entry *mid);
extern int cifs_handle_standard(struct TCP_Server_Info *server,
struct mid_q_entry *mid);
@@ -637,4 +637,9 @@ static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
void cifs_put_tcon_super(struct super_block *sb);
+static inline void cifs_mid_q_entry_release(struct mid_q_entry *midEntry)
+{
+ kref_put(&midEntry->refcount, _cifs_mid_q_entry_release);
+}
+
#endif /* _CIFSPROTO_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 1cbfb74c5380..51ceaf9ea315 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1582,9 +1582,8 @@ out_err:
static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)
{
- if (ctx->sectype != Unspecified &&
- ctx->sectype != ses->sectype)
- return 0;
+ struct TCP_Server_Info *server = ses->server;
+ enum securityEnum ctx_sec, ses_sec;
/*
* If an existing session is limited to less channels than
@@ -1597,11 +1596,19 @@ static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)
}
spin_unlock(&ses->chan_lock);
- switch (ses->sectype) {
+ ctx_sec = server->ops->select_sectype(server, ctx->sectype);
+ ses_sec = server->ops->select_sectype(server, ses->sectype);
+
+ if (ctx_sec != ses_sec)
+ return 0;
+
+ switch (ctx_sec) {
case Kerberos:
if (!uid_eq(ctx->cred_uid, ses->cred_uid))
return 0;
break;
+ case NTLMv2:
+ case RawNTLMSSP:
default:
/* NULL username means anonymous session */
if (ses->user_name == NULL) {
@@ -1676,7 +1683,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)
goto out;
}
- cifs_dbg(FYI, "IPC tcon rc = %d ipc tid = %d\n", rc, tcon->tid);
+ cifs_dbg(FYI, "IPC tcon rc=%d ipc tid=0x%x\n", rc, tcon->tid);
ses->tcon_ipc = tcon;
out:
diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index fb3651513f83..c3a71c69d339 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -1055,21 +1055,21 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
ctx->got_wsize = true;
break;
case Opt_acregmax:
- ctx->acregmax = HZ * result.uint_32;
- if (ctx->acregmax > CIFS_MAX_ACTIMEO) {
+ if (result.uint_32 > CIFS_MAX_ACTIMEO / HZ) {
cifs_errorf(fc, "acregmax too large\n");
goto cifs_parse_mount_err;
}
+ ctx->acregmax = HZ * result.uint_32;
break;
case Opt_acdirmax:
- ctx->acdirmax = HZ * result.uint_32;
- if (ctx->acdirmax > CIFS_MAX_ACTIMEO) {
+ if (result.uint_32 > CIFS_MAX_ACTIMEO / HZ) {
cifs_errorf(fc, "acdirmax too large\n");
goto cifs_parse_mount_err;
}
+ ctx->acdirmax = HZ * result.uint_32;
break;
case Opt_actimeo:
- if (HZ * result.uint_32 > CIFS_MAX_ACTIMEO) {
+ if (result.uint_32 > CIFS_MAX_ACTIMEO / HZ) {
cifs_errorf(fc, "timeout too large\n");
goto cifs_parse_mount_err;
}
@@ -1081,13 +1081,18 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
ctx->acdirmax = ctx->acregmax = HZ * result.uint_32;
break;
case Opt_closetimeo:
- ctx->closetimeo = HZ * result.uint_32;
- if (ctx->closetimeo > SMB3_MAX_DCLOSETIMEO) {
+ if (result.uint_32 > SMB3_MAX_DCLOSETIMEO / HZ) {
cifs_errorf(fc, "closetimeo too large\n");
goto cifs_parse_mount_err;
}
+ ctx->closetimeo = HZ * result.uint_32;
break;
case Opt_echo_interval:
+ if (result.uint_32 < SMB_ECHO_INTERVAL_MIN ||
+ result.uint_32 > SMB_ECHO_INTERVAL_MAX) {
+ cifs_errorf(fc, "echo interval is out of bounds\n");
+ goto cifs_parse_mount_err;
+ }
ctx->echo_interval = result.uint_32;
break;
case Opt_snapshot:
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 71883ba9e567..e846c18b71d2 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -232,7 +232,8 @@ static int cifs_dump_full_key(struct cifs_tcon *tcon, struct smb3_full_key_debug
spin_lock(&cifs_tcp_ses_lock);
list_for_each_entry(server_it, &cifs_tcp_ses_list, tcp_ses_list) {
list_for_each_entry(ses_it, &server_it->smb_ses_list, smb_ses_list) {
- if (ses_it->Suid == out.session_id) {
+ if (ses_it->status != CifsExiting &&
+ ses_it->Suid == out.session_id) {
ses = ses_it;
/*
* since we are using the session outside the crit
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 8f409404aee1..b84e682b4cae 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -759,7 +759,7 @@ __smb2_handle_cancelled_cmd(struct cifs_tcon *tcon, __u16 cmd, __u64 mid,
{
struct close_cancelled_open *cancelled;
- cancelled = kzalloc(sizeof(*cancelled), GFP_ATOMIC);
+ cancelled = kzalloc(sizeof(*cancelled), GFP_KERNEL);
if (!cancelled)
return -ENOMEM;
@@ -788,11 +788,12 @@ smb2_handle_cancelled_close(struct cifs_tcon *tcon, __u64 persistent_fid,
WARN_ONCE(tcon->tc_count < 0, "tcon refcount is negative");
spin_unlock(&cifs_tcp_ses_lock);
- if (tcon->ses)
+ if (tcon->ses) {
server = tcon->ses->server;
-
- cifs_server_dbg(FYI, "tid=%u: tcon is closing, skipping async close retry of fid %llu %llu\n",
- tcon->tid, persistent_fid, volatile_fid);
+ cifs_server_dbg(FYI,
+ "tid=0x%x: tcon is closing, skipping async close retry of fid %llu %llu\n",
+ tcon->tid, persistent_fid, volatile_fid);
+ }
return 0;
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index ee9a1e6550e3..da9305f0b6f5 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -4541,7 +4541,7 @@ smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key)
*/
static int
crypt_message(struct TCP_Server_Info *server, int num_rqst,
- struct smb_rqst *rqst, int enc)
+ struct smb_rqst *rqst, int enc, struct crypto_aead *tfm)
{
struct smb2_transform_hdr *tr_hdr =
(struct smb2_transform_hdr *)rqst[0].rq_iov[0].iov_base;
@@ -4552,8 +4552,6 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
u8 key[SMB3_ENC_DEC_KEY_SIZE];
struct aead_request *req;
u8 *iv;
- DECLARE_CRYPTO_WAIT(wait);
- struct crypto_aead *tfm;
unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
void *creq;
@@ -4564,15 +4562,6 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
return rc;
}
- rc = smb3_crypto_aead_allocate(server);
- if (rc) {
- cifs_server_dbg(VFS, "%s: crypto alloc failed\n", __func__);
- return rc;
- }
-
- tfm = enc ? server->secmech.ccmaesencrypt :
- server->secmech.ccmaesdecrypt;
-
if ((server->cipher_type == SMB2_ENCRYPTION_AES256_CCM) ||
(server->cipher_type == SMB2_ENCRYPTION_AES256_GCM))
rc = crypto_aead_setkey(tfm, key, SMB3_GCM256_CRYPTKEY_SIZE);
@@ -4611,11 +4600,7 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
aead_request_set_crypt(req, sg, sg, crypt_len, iv);
aead_request_set_ad(req, assoc_data_len);
- aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
- crypto_req_done, &wait);
-
- rc = crypto_wait_req(enc ? crypto_aead_encrypt(req)
- : crypto_aead_decrypt(req), &wait);
+ rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
if (!rc && enc)
memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);
@@ -4704,7 +4689,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst,
/* fill the 1st iov with a transform header */
fill_transform_hdr(tr_hdr, orig_len, old_rq, server->cipher_type);
- rc = crypt_message(server, num_rqst, new_rq, 1);
+ rc = crypt_message(server, num_rqst, new_rq, 1, server->secmech.ccmaesencrypt);
cifs_dbg(FYI, "Encrypt message returned %d\n", rc);
if (rc)
goto err_free;
@@ -4730,8 +4715,9 @@ decrypt_raw_data(struct TCP_Server_Info *server, char *buf,
unsigned int npages, unsigned int page_data_size,
bool is_offloaded)
{
- struct kvec iov[2];
+ struct crypto_aead *tfm;
struct smb_rqst rqst = {NULL};
+ struct kvec iov[2];
int rc;
iov[0].iov_base = buf;
@@ -4746,9 +4732,31 @@ decrypt_raw_data(struct TCP_Server_Info *server, char *buf,
rqst.rq_pagesz = PAGE_SIZE;
rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE;
- rc = crypt_message(server, 1, &rqst, 0);
+ if (is_offloaded) {
+ if ((server->cipher_type == SMB2_ENCRYPTION_AES128_GCM) ||
+ (server->cipher_type == SMB2_ENCRYPTION_AES256_GCM))
+ tfm = crypto_alloc_aead("gcm(aes)", 0, 0);
+ else
+ tfm = crypto_alloc_aead("ccm(aes)", 0, 0);
+ if (IS_ERR(tfm)) {
+ rc = PTR_ERR(tfm);
+ cifs_server_dbg(VFS, "%s: Failed alloc decrypt TFM, rc=%d\n", __func__, rc);
+
+ return rc;
+ }
+ } else {
+ if (unlikely(!server->secmech.ccmaesdecrypt))
+ return -EIO;
+
+ tfm = server->secmech.ccmaesdecrypt;
+ }
+
+ rc = crypt_message(server, 1, &rqst, 0, tfm);
cifs_dbg(FYI, "Decrypt message returned %d\n", rc);
+ if (is_offloaded)
+ crypto_free_aead(tfm);
+
if (rc)
return rc;
@@ -5198,6 +5206,10 @@ one_more:
next_buffer = (char *)cifs_buf_get();
else
next_buffer = (char *)cifs_small_buf_get();
+ if (!next_buffer) {
+ cifs_server_dbg(VFS, "No memory for (large) SMB response\n");
+ return -1;
+ }
memcpy(next_buffer, buf + next_cmd, pdu_length - next_cmd);
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index bd7aeb4dcacf..302c08dfb686 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1028,7 +1028,9 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
* SMB3.0 supports only 1 cipher and doesn't have a encryption neg context
* Set the cipher type manually.
*/
- if (server->dialect == SMB30_PROT_ID && (server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))
+ if ((server->dialect == SMB30_PROT_ID ||
+ server->dialect == SMB302_PROT_ID) &&
+ (server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))
server->cipher_type = SMB2_ENCRYPTION_AES128_CCM;
security_blob = smb2_get_data_area_len(&blob_offset, &blob_length,
@@ -1063,6 +1065,12 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
else
cifs_server_dbg(VFS, "Missing expected negotiate contexts\n");
}
+
+ if (server->cipher_type && !rc) {
+ rc = smb3_crypto_aead_allocate(server);
+ if (rc)
+ cifs_server_dbg(VFS, "%s: crypto alloc failed, rc=%d\n", __func__, rc);
+ }
neg_exit:
free_rsp_buf(resp_buftype, rsp);
return rc;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 49b7edbe3497..c5c1e743359d 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -34,6 +34,8 @@
void
cifs_wake_up_task(struct mid_q_entry *mid)
{
+ if (mid->mid_state == MID_RESPONSE_RECEIVED)
+ mid->mid_state = MID_RESPONSE_READY;
wake_up_process(mid->callback_data);
}
@@ -73,7 +75,7 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct TCP_Server_Info *server)
return temp;
}
-static void _cifs_mid_q_entry_release(struct kref *refcount)
+void _cifs_mid_q_entry_release(struct kref *refcount)
{
struct mid_q_entry *midEntry =
container_of(refcount, struct mid_q_entry, refcount);
@@ -86,7 +88,8 @@ static void _cifs_mid_q_entry_release(struct kref *refcount)
struct TCP_Server_Info *server = midEntry->server;
if (midEntry->resp_buf && (midEntry->mid_flags & MID_WAIT_CANCELLED) &&
- midEntry->mid_state == MID_RESPONSE_RECEIVED &&
+ (midEntry->mid_state == MID_RESPONSE_RECEIVED ||
+ midEntry->mid_state == MID_RESPONSE_READY) &&
server->ops->handle_cancelled_mid)
server->ops->handle_cancelled_mid(midEntry, server);
@@ -152,13 +155,6 @@ static void _cifs_mid_q_entry_release(struct kref *refcount)
mempool_free(midEntry, cifs_mid_poolp);
}
-void cifs_mid_q_entry_release(struct mid_q_entry *midEntry)
-{
- spin_lock(&GlobalMid_Lock);
- kref_put(&midEntry->refcount, _cifs_mid_q_entry_release);
- spin_unlock(&GlobalMid_Lock);
-}
-
void DeleteMidQEntry(struct mid_q_entry *midEntry)
{
cifs_mid_q_entry_release(midEntry);
@@ -762,7 +758,8 @@ wait_for_response(struct TCP_Server_Info *server, struct mid_q_entry *midQ)
int error;
error = wait_event_freezekillable_unsafe(server->response_q,
- midQ->mid_state != MID_REQUEST_SUBMITTED);
+ midQ->mid_state != MID_REQUEST_SUBMITTED &&
+ midQ->mid_state != MID_RESPONSE_RECEIVED);
if (error < 0)
return -ERESTARTSYS;
@@ -914,7 +911,7 @@ cifs_sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server)
spin_lock(&GlobalMid_Lock);
switch (mid->mid_state) {
- case MID_RESPONSE_RECEIVED:
+ case MID_RESPONSE_READY:
spin_unlock(&GlobalMid_Lock);
return rc;
case MID_RETRY_NEEDED:
@@ -1013,6 +1010,9 @@ cifs_compound_callback(struct mid_q_entry *mid)
credits.instance = server->reconnect_instance;
add_credits(server, &credits, mid->optype);
+
+ if (mid->mid_state == MID_RESPONSE_RECEIVED)
+ mid->mid_state = MID_RESPONSE_READY;
}
static void
@@ -1204,7 +1204,8 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
send_cancel(server, &rqst[i], midQ[i]);
spin_lock(&GlobalMid_Lock);
midQ[i]->mid_flags |= MID_WAIT_CANCELLED;
- if (midQ[i]->mid_state == MID_REQUEST_SUBMITTED) {
+ if (midQ[i]->mid_state == MID_REQUEST_SUBMITTED ||
+ midQ[i]->mid_state == MID_RESPONSE_RECEIVED) {
midQ[i]->callback = cifs_cancelled_callback;
cancelled_mid[i] = true;
credits[i].value = 0;
@@ -1225,7 +1226,7 @@ compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
}
if (!midQ[i]->resp_buf ||
- midQ[i]->mid_state != MID_RESPONSE_RECEIVED) {
+ midQ[i]->mid_state != MID_RESPONSE_READY) {
rc = -EIO;
cifs_dbg(FYI, "Bad MID state?\n");
goto out;
@@ -1404,7 +1405,8 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
if (rc != 0) {
send_cancel(server, &rqst, midQ);
spin_lock(&GlobalMid_Lock);
- if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
+ if (midQ->mid_state == MID_REQUEST_SUBMITTED ||
+ midQ->mid_state == MID_RESPONSE_RECEIVED) {
/* no longer considered to be "in-flight" */
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
@@ -1421,7 +1423,7 @@ SendReceive(const unsigned int xid, struct cifs_ses *ses,
}
if (!midQ->resp_buf || !out_buf ||
- midQ->mid_state != MID_RESPONSE_RECEIVED) {
+ midQ->mid_state != MID_RESPONSE_READY) {
rc = -EIO;
cifs_server_dbg(VFS, "Bad MID state?\n");
goto out;
@@ -1541,13 +1543,15 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
/* Wait for a reply - allow signals to interrupt. */
rc = wait_event_interruptible(server->response_q,
- (!(midQ->mid_state == MID_REQUEST_SUBMITTED)) ||
+ (!(midQ->mid_state == MID_REQUEST_SUBMITTED ||
+ midQ->mid_state == MID_RESPONSE_RECEIVED)) ||
((server->tcpStatus != CifsGood) &&
(server->tcpStatus != CifsNew)));
/* Were we interrupted by a signal ? */
if ((rc == -ERESTARTSYS) &&
- (midQ->mid_state == MID_REQUEST_SUBMITTED) &&
+ (midQ->mid_state == MID_REQUEST_SUBMITTED ||
+ midQ->mid_state == MID_RESPONSE_RECEIVED) &&
((server->tcpStatus == CifsGood) ||
(server->tcpStatus == CifsNew))) {
@@ -1577,7 +1581,8 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
if (rc) {
send_cancel(server, &rqst, midQ);
spin_lock(&GlobalMid_Lock);
- if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
+ if (midQ->mid_state == MID_REQUEST_SUBMITTED ||
+ midQ->mid_state == MID_RESPONSE_RECEIVED) {
/* no longer considered to be "in-flight" */
midQ->callback = DeleteMidQEntry;
spin_unlock(&GlobalMid_Lock);
@@ -1595,7 +1600,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
/* rcvd frame is ok */
- if (out_buf == NULL || midQ->mid_state != MID_RESPONSE_RECEIVED) {
+ if (out_buf == NULL || midQ->mid_state != MID_RESPONSE_READY) {
rc = -EIO;
cifs_tcon_dbg(VFS, "Bad MID state?\n");
goto out;
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-06 00:10:48 +0000