mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-23 02:51:47 +00:00
Code Issues Releases Wiki Activity

RDMA/srp: Fix error return code in srp_parse_options()

Browse source 
[ Upstream commit ed461b30b2 ]

In the previous iteration of the while loop, the "ret" may have been
assigned a value of 0, so the error return code -EINVAL may have been
incorrectly set to 0. To fix set valid return code before calling to
goto. Also investigate each case separately as Andy suggessted.

Fixes: e711f968c4 ("IB/srp: replace custom implementation of hex2bin()")
Fixes: 2a174df0c6 ("IB/srp: Use kstrtoull() instead of simple_strtoull()")
Fixes: 19f313438c ("IB/srp: Add RDMA/CM support")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/1669953638-11747-2-git-send-email-wangyufen@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wang Yufen 2022-12-02 12:00:38 +08:00 committed by Greg Kroah-Hartman
parent 8bc0ecf1c3
commit 6c8319b90f
1 changed files with 82 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

96
drivers/infiniband/ulp/srp/ib_srp.c
View file

@ -3410,7 +3410,8 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_PKEY:
if (match_hex(args, &token)) {
ret = match_hex(args, &token);
if (ret) {
pr_warn("bad P_Key parameter '%s'\n", p);
goto out;
}
@ -3470,7 +3471,8 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_MAX_SECT:
if (match_int(args, &token)) {
ret = match_int(args, &token);
if (ret) {
pr_warn("bad max sect parameter '%s'\n", p);
goto out;
}
@ -3478,8 +3480,15 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_QUEUE_SIZE:
if (match_int(args, &token) || token < 1) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for queue_size parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1) {
pr_warn("bad queue_size parameter '%s'\n", p);
ret = -EINVAL;
goto out;
}
target->scsi_host->can_queue = token;
@ -3490,25 +3499,40 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_MAX_CMD_PER_LUN:
if (match_int(args, &token) || token < 1) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for max cmd_per_lun parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1) {
pr_warn("bad max cmd_per_lun parameter '%s'\n",
p);
ret = -EINVAL;
goto out;
}
target->scsi_host->cmd_per_lun = token;
break;
case SRP_OPT_TARGET_CAN_QUEUE:
if (match_int(args, &token) || token < 1) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for max target_can_queue parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1) {
pr_warn("bad max target_can_queue parameter '%s'\n",
p);
ret = -EINVAL;
goto out;
}
target->target_can_queue = token;
break;
case SRP_OPT_IO_CLASS:
if (match_hex(args, &token)) {
ret = match_hex(args, &token);
if (ret) {
pr_warn("bad IO class parameter '%s'\n", p);
goto out;
}
@ -3517,6 +3541,7 @@ static int srp_parse_options(struct net *net, const char *buf,
pr_warn("unknown IO class parameter value %x specified (use %x or %x).\n",
token, SRP_REV10_IB_IO_CLASS,
SRP_REV16A_IB_IO_CLASS);
ret = -EINVAL;
goto out;
}
target->io_class = token;
@ -3539,16 +3564,24 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_CMD_SG_ENTRIES:
if (match_int(args, &token) || token < 1 || token > 255) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for max cmd_sg_entries parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1 || token > 255) {
pr_warn("bad max cmd_sg_entries parameter '%s'\n",
p);
ret = -EINVAL;
goto out;
}
target->cmd_sg_cnt = token;
break;
case SRP_OPT_ALLOW_EXT_SG:
if (match_int(args, &token)) {
ret = match_int(args, &token);
if (ret) {
pr_warn("bad allow_ext_sg parameter '%s'\n", p);
goto out;
}
@ -3556,43 +3589,77 @@ static int srp_parse_options(struct net *net, const char *buf,
break;
case SRP_OPT_SG_TABLESIZE:
if (match_int(args, &token) || token < 1 ||
token > SG_MAX_SEGMENTS) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for max sg_tablesize parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1 || token > SG_MAX_SEGMENTS) {
pr_warn("bad max sg_tablesize parameter '%s'\n",
p);
ret = -EINVAL;
goto out;
}
target->sg_tablesize = token;
break;
case SRP_OPT_COMP_VECTOR:
if (match_int(args, &token) || token < 0) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for comp_vector parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 0) {
pr_warn("bad comp_vector parameter '%s'\n", p);
ret = -EINVAL;
goto out;
}
target->comp_vector = token;
break;
case SRP_OPT_TL_RETRY_COUNT:
if (match_int(args, &token) || token < 2 || token > 7) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for tl_retry_count parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 2 || token > 7) {
pr_warn("bad tl_retry_count parameter '%s' (must be a number between 2 and 7)\n",
p);
ret = -EINVAL;
goto out;
}
target->tl_retry_count = token;
break;
case SRP_OPT_MAX_IT_IU_SIZE:
if (match_int(args, &token) || token < 0) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for max it_iu_size parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 0) {
pr_warn("bad maximum initiator to target IU size '%s'\n", p);
ret = -EINVAL;
goto out;
}
target->max_it_iu_size = token;
break;
case SRP_OPT_CH_COUNT:
if (match_int(args, &token) || token < 1) {
ret = match_int(args, &token);
if (ret) {
pr_warn("match_int() failed for channel count parameter '%s', Error %d\n",
p, ret);
goto out;
}
if (token < 1) {
pr_warn("bad channel count %s\n", p);
ret = -EINVAL;
goto out;
}
target->ch_count = token;
@ -3601,6 +3668,7 @@ static int srp_parse_options(struct net *net, const char *buf,
default:
pr_warn("unknown parameter or missing value '%s' in target creation request\n",
p);
ret = -EINVAL;
goto out;
}
}