mirrors/scst
1
0
Fork 0
mirror of https://github.com/SCST-project/scst.git synced 2026-08-22 07:06:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Convert strict_strtoul() and simple_strtoul() into kstrtoul() or sscanf() (merge r4137 from trunk)

Browse Source 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.2.x@6039 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2015-02-10 12:59:03 +00:00
parent 1c8d735825
commit 0176d806ad
3 changed files with 136 additions and 177 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scst/src/dev_handlers/scst_vdisk.c
+6 -2
View File
@@ -3548,10 +3548,14 @@ static int vdev_parse_add_dev_params(struct scst_vdisk_dev *virt_dev,
continue;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(pp, 0, &val);
#else
res = strict_strtoul(pp, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %d "
"(device %s)", pp, res, virt_dev->name);
PRINT_ERROR("strtoul() for %s failed: %d (device %s)",
pp, res, virt_dev->name);
goto out;
}
scst/src/scst_sysfs.c
+120 -173
View File
@@ -150,7 +150,7 @@ static int scst_write_trace(const char *buf, size_t length,
int res;
int action;
unsigned long level = 0, oldlevel;
char *buffer, *p, *e;
char *buffer, *p, *pp;
const struct scst_trace_log *t;
enum {
SCST_TRACE_ACTION_ALL = 1,
@@ -178,40 +178,27 @@ static int scst_write_trace(const char *buf, size_t length,
TRACE_DBG("buffer %s", buffer);
p = buffer;
if (!strncasecmp("all", p, 3)) {
pp = buffer;
p = scst_get_next_lexem(&pp);
if (strcasecmp("all", p) == 0) {
action = SCST_TRACE_ACTION_ALL;
} else if (!strncasecmp("none", p, 4) || !strncasecmp("null", p, 4)) {
} else if (strcasecmp("none", p) == 0 || strcasecmp("null", p) == 0) {
action = SCST_TRACE_ACTION_NONE;
} else if (!strncasecmp("default", p, 7)) {
} else if (strcasecmp("default", p) == 0) {
action = SCST_TRACE_ACTION_DEFAULT;
} else if (!strncasecmp("add", p, 3)) {
p += 3;
} else if (strcasecmp("add", p) == 0) {
action = SCST_TRACE_ACTION_ADD;
} else if (!strncasecmp("del", p, 3)) {
p += 3;
} else if (strcasecmp("del", p) == 0) {
action = SCST_TRACE_ACTION_DEL;
} else if (!strncasecmp("value", p, 5)) {
p += 5;
} else if (strcasecmp("value", p) == 0) {
action = SCST_TRACE_ACTION_VALUE;
} else {
if (p[strlen(p) - 1] == '\n')
p[strlen(p) - 1] = '\0';
PRINT_ERROR("Unknown action \"%s\"", p);
res = -EINVAL;
goto out_free;
}
switch (action) {
case SCST_TRACE_ACTION_ADD:
case SCST_TRACE_ACTION_DEL:
case SCST_TRACE_ACTION_VALUE:
if (!isspace(*p)) {
PRINT_ERROR("%s", "Syntax error");
res = -EINVAL;
goto out_free;
}
}
p = scst_get_next_lexem(&pp);
switch (action) {
case SCST_TRACE_ACTION_ALL:
@@ -225,12 +212,6 @@ static int scst_write_trace(const char *buf, size_t length,
break;
case SCST_TRACE_ACTION_ADD:
case SCST_TRACE_ACTION_DEL:
while (isspace(*p) && *p != '\0')
p++;
e = p;
while (!isspace(*e) && *e != '\0')
e++;
*e = 0;
if (tbl) {
t = tbl;
while (t->token) {
@@ -258,9 +239,11 @@ static int scst_write_trace(const char *buf, size_t length,
}
break;
case SCST_TRACE_ACTION_VALUE:
while (isspace(*p) && *p != '\0')
p++;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(p, 0, &level);
#else
res = strict_strtoul(p, 0, &level);
#endif
if (res != 0) {
PRINT_ERROR("Invalid trace value \"%s\"", p);
res = -EINVAL;
@@ -910,9 +893,6 @@ static int scst_process_tgtt_mgmt_store(char *buffer,
goto out;
pp = buffer;
if (pp[strlen(pp) - 1] == '\n')
pp[strlen(pp) - 1] = '\0';
p = scst_get_next_lexem(&pp);
if (strcasecmp("add_target", p) == 0) {
@@ -1116,8 +1096,8 @@ static int __scst_process_luns_mgmt_store(char *buffer,
struct scst_tgt *tgt, struct scst_acg *acg, bool tgt_kobj)
{
int res, read_only = 0, action;
char *p, *e = NULL;
unsigned int virt_lun;
char *p, *pp, *e;
unsigned long virt_lun;
struct scst_acg_dev *acg_dev = NULL, *acg_dev_tmp;
struct scst_device *d, *dev = NULL;
enum {
@@ -1131,20 +1111,15 @@ static int __scst_process_luns_mgmt_store(char *buffer,
TRACE_DBG("buffer %s", buffer);
p = buffer;
if (p[strlen(p) - 1] == '\n')
p[strlen(p) - 1] = '\0';
if (strncasecmp("add", p, 3) == 0) {
p += 3;
pp = buffer;
p = scst_get_next_lexem(&pp);
if (strcasecmp("add", p) == 0) {
action = SCST_LUN_ACTION_ADD;
} else if (strncasecmp("del", p, 3) == 0) {
p += 3;
} else if (strcasecmp("del", p) == 0) {
action = SCST_LUN_ACTION_DEL;
} else if (!strncasecmp("replace", p, 7)) {
p += 7;
} else if (strcasecmp("replace", p) == 0) {
action = SCST_LUN_ACTION_REPLACE;
} else if (!strncasecmp("clear", p, 5)) {
p += 5;
} else if (strcasecmp("clear", p) == 0) {
action = SCST_LUN_ACTION_CLEAR;
} else {
PRINT_ERROR("Unknown action \"%s\"", p);
@@ -1166,19 +1141,7 @@ static int __scst_process_luns_mgmt_store(char *buffer,
if ((action != SCST_LUN_ACTION_CLEAR) &&
(action != SCST_LUN_ACTION_DEL)) {
if (!isspace(*p)) {
PRINT_ERROR("%s", "Syntax error");
res = -EINVAL;
goto out_unlock;
}
while (isspace(*p) && *p != '\0')
p++;
e = p; /* save p */
while (!isspace(*e) && *e != '\0')
e++;
*e = '\0';
p = scst_get_next_lexem(&pp);
list_for_each_entry(d, &scst_dev_list, dev_list_entry) {
if (!strcmp(d->virt_name, p)) {
dev = d;
@@ -1199,20 +1162,19 @@ static int __scst_process_luns_mgmt_store(char *buffer,
{
bool dev_replaced = false;
e++;
while (isspace(*e) && *e != '\0')
e++;
virt_lun = simple_strtoul(e, &e, 0);
if (virt_lun > SCST_MAX_LUN) {
PRINT_ERROR("Too big LUN %d (max %d)", virt_lun,
SCST_MAX_LUN);
res = -EINVAL;
e = scst_get_next_lexem(&pp);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(e, 0, &virt_lun);
#else
res = strict_strtoul(e, 0, &virt_lun);
#endif
if (res != 0 || virt_lun > SCST_MAX_LUN) {
PRINT_ERROR("Invalid value or too big LUN %s "
"(max %d, res %d)", p, SCST_MAX_LUN, res);
goto out_unlock;
}
while (isspace(*e) && *e != '\0')
e++;
e = scst_get_next_lexem(&pp);
while (1) {
char *pp;
@@ -1244,7 +1206,11 @@ static int __scst_process_luns_mgmt_store(char *buffer,
goto out_unlock;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(pp, 0, &val);
#else
res = strict_strtoul(pp, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %d "
"(device %s)", pp, res, dev->virt_name);
@@ -1273,7 +1239,7 @@ static int __scst_process_luns_mgmt_store(char *buffer,
if (acg_dev != NULL) {
if (action == SCST_LUN_ACTION_ADD) {
PRINT_ERROR("virt lun %d already exists in "
PRINT_ERROR("virt lun %ld already exists in "
"group %s", virt_lun, acg->acg_name);
res = -EEXIST;
goto out_unlock;
@@ -1312,15 +1278,32 @@ static int __scst_process_luns_mgmt_store(char *buffer,
break;
}
case SCST_LUN_ACTION_DEL:
while (isspace(*p) && *p != '\0')
p++;
virt_lun = simple_strtoul(p, &p, 0);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(p, 0, &virt_lun);
#else
res = strict_strtoul(p, 0, &virt_lun);
#endif
if (res != 0)
goto out_unlock;
if (scst_get_next_lexem(&pp)[0] != '\0') {
PRINT_ERROR("Too many parameters for device %s: %s",
p, dev->virt_name);
res = -EINVAL;
goto out_unlock;
}
res = scst_acg_del_lun(acg, virt_lun, true);
if (res != 0)
goto out_unlock;
break;
case SCST_LUN_ACTION_CLEAR:
if (scst_get_next_lexem(&pp)[0] != '\0') {
PRINT_ERROR("Too many parameters for device %s: %s",
p, dev->virt_name);
res = -EINVAL;
goto out_unlock;
}
PRINT_INFO("Removed all devices from group %s",
acg->acg_name);
list_for_each_entry_safe(acg_dev, acg_dev_tmp,
@@ -1610,7 +1593,11 @@ static ssize_t __scst_acg_io_grouping_type_store(struct scst_acg *acg,
min_t(int, strlen(SCST_IO_GROUPING_NEVER_STR), count)) == 0)
io_grouping_type = SCST_IO_GROUPING_NEVER;
else {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtol(buf, 0, &io_grouping_type);
#else
res = strict_strtol(buf, 0, &io_grouping_type);
#endif
if ((res != 0) || (io_grouping_type <= 0)) {
PRINT_ERROR("Unknown or not allowed I/O grouping type "
"%s", buf);
@@ -1860,7 +1847,7 @@ static int scst_process_ini_group_mgmt_store(char *buffer,
struct scst_tgt *tgt)
{
int res, action;
char *p, *e = NULL;
char *p, *pp;
struct scst_acg *a, *acg = NULL;
enum {
SCST_INI_GROUP_ACTION_CREATE = 1,
@@ -1871,14 +1858,11 @@ static int scst_process_ini_group_mgmt_store(char *buffer,
TRACE_DBG("tgt %p, buffer %s", tgt, buffer);
p = buffer;
if (p[strlen(p) - 1] == '\n')
p[strlen(p) - 1] = '\0';
if (strncasecmp("create ", p, 7) == 0) {
p += 7;
pp = buffer;
p = scst_get_next_lexem(&pp);
if (strcasecmp("create", p) == 0) {
action = SCST_INI_GROUP_ACTION_CREATE;
} else if (strncasecmp("del ", p, 4) == 0) {
p += 4;
} else if (strcasecmp("del", p) == 0) {
action = SCST_INI_GROUP_ACTION_DEL;
} else {
PRINT_ERROR("Unknown action \"%s\"", p);
@@ -1898,13 +1882,7 @@ static int scst_process_ini_group_mgmt_store(char *buffer,
if (scst_check_tgt_acg_ptrs(tgt, NULL) != 0)
goto out_unlock;
while (isspace(*p) && *p != '\0')
p++;
e = p;
while (!isspace(*e) && *e != '\0')
e++;
*e = '\0';
p = scst_get_next_lexem(&pp);
if (p[0] == '\0') {
PRINT_ERROR("%s", "Group name required");
res = -EINVAL;
@@ -2206,7 +2184,11 @@ static ssize_t scst_rel_tgt_id_store(struct kobject *kobj,
tgt = container_of(kobj, struct scst_tgt, tgt_kobj);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(buf, 0, &rel_tgt_id);
#else
res = strict_strtoul(buf, 0, &rel_tgt_id);
#endif
if (res != 0) {
PRINT_ERROR("%s", "Wrong rel_tgt_id");
res = -EINVAL;
@@ -2635,7 +2617,11 @@ static ssize_t scst_dev_sysfs_threads_num_store(struct kobject *kobj,
dev = container_of(kobj, struct scst_device, dev_kobj);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtol(buf, 0, &newtn);
#else
res = strict_strtol(buf, 0, &newtn);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtol() for %s failed: %d ", buf, res);
goto out;
@@ -3894,8 +3880,7 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
struct scst_tgt *tgt, struct scst_acg *acg)
{
int res, action;
char *p, *e = NULL;
char *name = NULL, *group = NULL;
char *p, *pp, *name, *group;
struct scst_acg *acg_dest = NULL;
struct scst_acn *acn = NULL, *acn_tmp;
enum {
@@ -3909,21 +3894,15 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
TRACE_DBG("tgt %p, acg %p, buffer %s", tgt, acg, buffer);
p = buffer;
if (p[strlen(p) - 1] == '\n')
p[strlen(p) - 1] = '\0';
if (strncasecmp("add", p, 3) == 0) {
p += 3;
pp = buffer;
p = scst_get_next_lexem(&pp);
if (strcasecmp("add", p) == 0) {
action = SCST_ACG_ACTION_INI_ADD;
} else if (strncasecmp("del", p, 3) == 0) {
p += 3;
} else if (strcasecmp("del", p) == 0) {
action = SCST_ACG_ACTION_INI_DEL;
} else if (strncasecmp("clear", p, 5) == 0) {
p += 5;
} else if (strcasecmp("clear", p) == 0) {
action = SCST_ACG_ACTION_INI_CLEAR;
} else if (strncasecmp("move", p, 4) == 0) {
p += 4;
} else if (strcasecmp("move", p) == 0) {
action = SCST_ACG_ACTION_INI_MOVE;
} else {
PRINT_ERROR("Unknown action \"%s\"", p);
@@ -3931,13 +3910,6 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
goto out;
}
if (action != SCST_ACG_ACTION_INI_CLEAR)
if (!isspace(*p)) {
PRINT_ERROR("%s", "Syntax error");
res = -EINVAL;
goto out;
}
res = scst_suspend_activity(true);
if (res != 0)
goto out;
@@ -3950,18 +3922,9 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
if (scst_check_tgt_acg_ptrs(tgt, acg) != 0)
goto out_unlock;
if (action != SCST_ACG_ACTION_INI_CLEAR)
while (isspace(*p) && *p != '\0')
p++;
switch (action) {
case SCST_ACG_ACTION_INI_ADD:
e = p;
while (!isspace(*e) && *e != '\0')
e++;
*e = '\0';
name = p;
name = scst_get_next_lexem(&pp);
if (name[0] == '\0') {
PRINT_ERROR("%s", "Invalid initiator name");
res = -EINVAL;
@@ -3973,12 +3936,7 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
goto out_unlock;
break;
case SCST_ACG_ACTION_INI_DEL:
e = p;
while (!isspace(*e) && *e != '\0')
e++;
*e = '\0';
name = p;
name = scst_get_next_lexem(&pp);
if (name[0] == '\0') {
PRINT_ERROR("%s", "Invalid initiator name");
res = -EINVAL;
@@ -4003,30 +3961,14 @@ static int scst_process_acg_ini_mgmt_store(char *buffer,
scst_check_reassign_sessions();
break;
case SCST_ACG_ACTION_INI_MOVE:
e = p;
while (!isspace(*e) && *e != '\0')
e++;
if (*e == '\0') {
PRINT_ERROR("%s", "Too few parameters");
res = -EINVAL;
goto out_unlock;
}
*e = '\0';
name = p;
name = scst_get_next_lexem(&pp);
if (name[0] == '\0') {
PRINT_ERROR("%s", "Invalid initiator name");
res = -EINVAL;
goto out_unlock;
}
e++;
p = e;
while (!isspace(*e) && *e != '\0')
e++;
*e = '\0';
group = p;
group = scst_get_next_lexem(&pp);
if (group[0] == '\0') {
PRINT_ERROR("%s", "Invalid group name");
res = -EINVAL;
@@ -4564,9 +4506,6 @@ static int scst_process_devt_mgmt_store(char *buffer,
TRACE_DBG("devt %p, buffer %s", devt, buffer);
pp = buffer;
if (pp[strlen(pp) - 1] == '\n')
pp[strlen(pp) - 1] = '\0';
p = scst_get_next_lexem(&pp);
if (strcasecmp("add_device", p) == 0) {
@@ -4680,8 +4619,8 @@ static int scst_process_devt_pass_through_mgmt_store(char *buffer,
struct scst_dev_type *devt)
{
int res = 0;
char *p, *pp, *action;
unsigned long host, channel, id, lun;
char *pp, *action, *devstr;
unsigned int host, channel, id, lun;
struct scst_device *d, *dev = NULL;
TRACE_ENTRY();
@@ -4689,12 +4628,9 @@ static int scst_process_devt_pass_through_mgmt_store(char *buffer,
TRACE_DBG("devt %p, buffer %s", devt, buffer);
pp = buffer;
if (pp[strlen(pp) - 1] == '\n')
pp[strlen(pp) - 1] = '\0';
action = scst_get_next_lexem(&pp);
p = scst_get_next_lexem(&pp);
if (*p == '\0') {
devstr = scst_get_next_lexem(&pp);
if (*devstr == '\0') {
PRINT_ERROR("%s", "Device required");
res = -EINVAL;
goto out;
@@ -4706,23 +4642,10 @@ static int scst_process_devt_pass_through_mgmt_store(char *buffer,
goto out_syntax_err;
}
host = simple_strtoul(p, &p, 0);
if ((host == ULONG_MAX) || (*p != ':'))
goto out_syntax_err;
p++;
channel = simple_strtoul(p, &p, 0);
if ((channel == ULONG_MAX) || (*p != ':'))
goto out_syntax_err;
p++;
id = simple_strtoul(p, &p, 0);
if ((channel == ULONG_MAX) || (*p != ':'))
goto out_syntax_err;
p++;
lun = simple_strtoul(p, &p, 0);
if (lun == ULONG_MAX)
if (sscanf(devstr, "%u:%u:%u:%u", &host, &channel, &id, &lun) != 4)
goto out_syntax_err;
TRACE_DBG("Dev %ld:%ld:%ld:%ld", host, channel, id, lun);
TRACE_DBG("Dev %d:%d:%d:%d", host, channel, id, lun);
res = mutex_lock_interruptible(&scst_mutex);
if (res != 0)
@@ -4739,13 +4662,13 @@ static int scst_process_devt_pass_through_mgmt_store(char *buffer,
d->scsi_dev->id == id &&
d->scsi_dev->lun == lun) {
dev = d;
TRACE_DBG("Dev %p (%ld:%ld:%ld:%ld) found",
TRACE_DBG("Dev %p (%d:%d:%d:%d) found",
dev, host, channel, id, lun);
break;
}
}
if (dev == NULL) {
PRINT_ERROR("Device %ld:%ld:%ld:%ld not found",
PRINT_ERROR("Device %d:%d:%d:%d not found",
host, channel, id, lun);
res = -EINVAL;
goto out_unlock;
@@ -4789,7 +4712,7 @@ out:
return res;
out_syntax_err:
PRINT_ERROR("Syntax error on \"%s\"", p);
PRINT_ERROR("Syntax error on \"%s\"", buffer);
res = -EINVAL;
goto out;
}
@@ -5040,7 +4963,11 @@ static ssize_t scst_tg_tgt_rel_tgt_id_store(struct kobject *kobj,
TRACE_ENTRY();
tg_tgt = container_of(kobj, struct scst_tg_tgt, kobj);
snprintf(ch, sizeof(ch), "%.*s", min_t(int, count, sizeof(ch)-1), buf);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(ch, 0, &rel_tgt_id);
#else
res = strict_strtoul(ch, 0, &rel_tgt_id);
#endif
if (res)
goto out;
res = -EINVAL;
@@ -5130,7 +5057,11 @@ static ssize_t scst_tg_group_id_store(struct kobject *kobj,
TRACE_ENTRY();
tg = container_of(kobj, struct scst_target_group, kobj);
snprintf(ch, sizeof(ch), "%.*s", min_t(int, count, sizeof(ch)-1), buf);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(ch, 0, &group_id);
#else
res = strict_strtoul(ch, 0, &group_id);
#endif
if (res)
goto out;
res = -EINVAL;
@@ -5170,7 +5101,11 @@ static ssize_t scst_tg_preferred_store(struct kobject *kobj,
TRACE_ENTRY();
tg = container_of(kobj, struct scst_target_group, kobj);
snprintf(ch, sizeof(ch), "%.*s", min_t(int, count, sizeof(ch)-1), buf);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(ch, 0, &preferred);
#else
res = strict_strtoul(ch, 0, &preferred);
#endif
if (res)
goto out;
res = -EINVAL;
@@ -5658,7 +5593,11 @@ static ssize_t scst_threads_store(struct kobject *kobj,
TRACE_ENTRY();
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtol(buf, 0, &newtn);
#else
res = strict_strtol(buf, 0, &newtn);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtol() for %s failed: %d ", buf, res);
goto out;
@@ -5710,7 +5649,11 @@ static ssize_t scst_setup_id_store(struct kobject *kobj,
TRACE_ENTRY();
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(buf, 0, &val);
#else
res = strict_strtoul(buf, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %d ", buf, res);
goto out;
@@ -5753,7 +5696,11 @@ static ssize_t scst_max_tasklet_cmd_store(struct kobject *kobj,
TRACE_ENTRY();
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(buf, 0, &val);
#else
res = strict_strtoul(buf, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %d ", buf, res);
goto out;
scst_local/scst_local.c
+10 -2
View File
@@ -432,9 +432,13 @@ static ssize_t scst_local_scsi_transport_version_store(struct kobject *kobj,
if (!tgt)
goto out_up;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(buffer, 0, &val);
#else
res = strict_strtoul(buffer, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %zd", buffer, res);
PRINT_ERROR("strtoul() for %s failed: %zd", buffer, res);
goto out_up;
}
@@ -494,9 +498,13 @@ static ssize_t scst_local_phys_transport_version_store(struct kobject *kobj,
if (!tgt)
goto out_up;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)
res = kstrtoul(buffer, 0, &val);
#else
res = strict_strtoul(buffer, 0, &val);
#endif
if (res != 0) {
PRINT_ERROR("strict_strtoul() for %s failed: %zd", buffer, res);
PRINT_ERROR("strtoul() for %s failed: %zd", buffer, res);
goto out_up;
}