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tcm_loop: fixup tpgt string to integer conversion

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Currently, for example, mkdir "tpgt_xyz" doesn't return error.
mkdir /sys/kernel/config/target/loopback/naa.60014055f195952b/tpgt_xyz

Replace obsoleted simple_strtoul with kstrtoul and check the conversion.

Signed-off-by: Ming Lin <mlin@kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Ming Lin 2015-03-29 23:11:30 -07:00 committed by Nicholas Bellinger
parent 9e35eff449
commit 2e1cd90d71
1 changed files with 6 additions and 8 deletions
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14
drivers/target/loopback/tcm_loop.c
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@ -1216,21 +1216,19 @@ static struct se_portal_group *tcm_loop_make_naa_tpg(
struct tcm_loop_hba *tl_hba = container_of(wwn,
struct tcm_loop_hba, tl_hba_wwn);
struct tcm_loop_tpg *tl_tpg;
char *tpgt_str, *end_ptr;
int ret;
unsigned short int tpgt;
unsigned long tpgt;
tpgt_str = strstr(name, "tpgt_");
if (!tpgt_str) {
if (strstr(name, "tpgt_") != name) {
pr_err("Unable to locate \"tpgt_#\" directory"
" group\n");
return ERR_PTR(-EINVAL);
}
tpgt_str += 5; /* Skip ahead of "tpgt_" */
tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
if (kstrtoul(name+5, 10, &tpgt))
return ERR_PTR(-EINVAL);
if (tpgt >= TL_TPGS_PER_HBA) {
pr_err("Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:"
pr_err("Passed tpgt: %lu exceeds TL_TPGS_PER_HBA:"
" %u\n", tpgt, TL_TPGS_PER_HBA);
return ERR_PTR(-EINVAL);
}
@ -1247,7 +1245,7 @@ static struct se_portal_group *tcm_loop_make_naa_tpg(
return ERR_PTR(-ENOMEM);
pr_debug("TCM_Loop_ConfigFS: Allocated Emulated %s"
" Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba),
" Target Port %s,t,0x%04lx\n", tcm_loop_dump_proto_id(tl_hba),
config_item_name(&wwn->wwn_group.cg_item), tpgt);
return &tl_tpg->tl_se_tpg;