diff options
Diffstat (limited to 'arch/s390/kernel/ipl.c')
| -rw-r--r-- | arch/s390/kernel/ipl.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 3b9d9ccfad63..ff15f91affde 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -270,7 +270,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ { \ if (len >= sizeof(_value)) \ return -E2BIG; \ - len = strscpy(_value, buf, sizeof(_value)); \ + len = strscpy(_value, buf); \ if ((ssize_t)len < 0) \ return len; \ strim(_value); \ @@ -2249,26 +2249,28 @@ static int __init s390_ipl_init(void) __initcall(s390_ipl_init); -static void __init strncpy_skip_quote(char *dst, char *src, int n) +static void __init strscpy_skip_quote(char *dst, char *src, int n) { int sx, dx; - dx = 0; - for (sx = 0; src[sx] != 0; sx++) { + if (!n) + return; + for (sx = 0, dx = 0; src[sx]; sx++) { if (src[sx] == '"') continue; - dst[dx++] = src[sx]; - if (dx >= n) + dst[dx] = src[sx]; + if (dx + 1 == n) break; + dx++; } + dst[dx] = '\0'; } static int __init vmcmd_on_reboot_setup(char *str) { if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_reboot, str, VMCMD_MAX_SIZE); - vmcmd_on_reboot[VMCMD_MAX_SIZE] = 0; + strscpy_skip_quote(vmcmd_on_reboot, str, sizeof(vmcmd_on_reboot)); on_reboot_trigger.action = &vmcmd_action; return 1; } @@ -2278,8 +2280,7 @@ static int __init vmcmd_on_panic_setup(char *str) { if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_panic, str, VMCMD_MAX_SIZE); - vmcmd_on_panic[VMCMD_MAX_SIZE] = 0; + strscpy_skip_quote(vmcmd_on_panic, str, sizeof(vmcmd_on_panic)); on_panic_trigger.action = &vmcmd_action; return 1; } @@ -2289,8 +2290,7 @@ static int __init vmcmd_on_halt_setup(char *str) { if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_halt, str, VMCMD_MAX_SIZE); - vmcmd_on_halt[VMCMD_MAX_SIZE] = 0; + strscpy_skip_quote(vmcmd_on_halt, str, sizeof(vmcmd_on_halt)); on_halt_trigger.action = &vmcmd_action; return 1; } @@ -2300,8 +2300,7 @@ static int __init vmcmd_on_poff_setup(char *str) { if (!machine_is_vm()) return 1; - strncpy_skip_quote(vmcmd_on_poff, str, VMCMD_MAX_SIZE); - vmcmd_on_poff[VMCMD_MAX_SIZE] = 0; + strscpy_skip_quote(vmcmd_on_poff, str, sizeof(vmcmd_on_poff)); on_poff_trigger.action = &vmcmd_action; return 1; } |