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authorMike Christie <mchristi@redhat.com>2018-07-23 14:07:50 -0500
committerMartin K. Petersen <martin.petersen@oracle.com>2018-07-30 23:17:53 -0400
commitb60cb1f80157689d206b09affc43c2dc1cafcbc8 (patch)
tree8ac521b38f03249a07d004d2c84c1060229c8375 /drivers/target
parentc97840c84f5a4362a596a2751e9245a979377a16 (diff)
downloadlinux-b60cb1f80157689d206b09affc43c2dc1cafcbc8.tar.bz2
scsi: tcmu: use match_int for dev params
Instead of doing strdup and kstrto* just use match_int for dev params. It will be ok to use int instead of unsigned long in tcmu_set_dev_attrib because that is only being used for max sectors and block size and the supported values for them are well under the max possible integer value. Signed-off-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_user.c37
1 files changed, 14 insertions, 23 deletions
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 969ccbaaccba..cfe4f4b8c45c 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -2017,8 +2017,8 @@ enum {
static match_table_t tokens = {
{Opt_dev_config, "dev_config=%s"},
{Opt_dev_size, "dev_size=%u"},
- {Opt_hw_block_size, "hw_block_size=%u"},
- {Opt_hw_max_sectors, "hw_max_sectors=%u"},
+ {Opt_hw_block_size, "hw_block_size=%d"},
+ {Opt_hw_max_sectors, "hw_max_sectors=%d"},
{Opt_nl_reply_supported, "nl_reply_supported=%d"},
{Opt_max_data_area_mb, "max_data_area_mb=%d"},
{Opt_err, NULL}
@@ -2026,25 +2026,21 @@ static match_table_t tokens = {
static int tcmu_set_dev_attrib(substring_t *arg, u32 *dev_attrib)
{
- unsigned long tmp_ul;
- char *arg_p;
- int ret;
-
- arg_p = match_strdup(arg);
- if (!arg_p)
- return -ENOMEM;
+ int val, ret;
- ret = kstrtoul(arg_p, 0, &tmp_ul);
- kfree(arg_p);
+ ret = match_int(arg, &val);
if (ret < 0) {
- pr_err("kstrtoul() failed for dev attrib\n");
+ pr_err("match_int() failed for dev attrib. Error %d.\n",
+ ret);
return ret;
}
- if (!tmp_ul) {
- pr_err("dev attrib must be nonzero\n");
+
+ if (val <= 0) {
+ pr_err("Invalid dev attrib value %d. Must be greater than zero.\n",
+ val);
return -EINVAL;
}
- *dev_attrib = tmp_ul;
+ *dev_attrib = val;
return 0;
}
@@ -2131,15 +2127,10 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev,
&(dev->dev_attrib.hw_max_sectors));
break;
case Opt_nl_reply_supported:
- arg_p = match_strdup(&args[0]);
- if (!arg_p) {
- ret = -ENOMEM;
- break;
- }
- ret = kstrtoint(arg_p, 0, &udev->nl_reply_supported);
- kfree(arg_p);
+ ret = match_int(&args[0], &udev->nl_reply_supported);
if (ret < 0)
- pr_err("kstrtoint() failed for nl_reply_supported=\n");
+ pr_err("match_int() failed for nl_reply_supported=. Error %d.\n",
+ ret);
break;
case Opt_max_data_area_mb:
ret = tcmu_set_max_blocks_param(udev, &args[0]);