diff options
Diffstat (limited to 'drivers/s390/char/sclp_async.c')
| -rw-r--r-- | drivers/s390/char/sclp_async.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c index b44462a6c6d..5f9f929e891 100644 --- a/drivers/s390/char/sclp_async.c +++ b/drivers/s390/char/sclp_async.c @@ -11,6 +11,7 @@ #include <linux/device.h> #include <linux/stat.h> #include <linux/string.h> +#include <linux/slab.h> #include <linux/ctype.h> #include <linux/kmod.h> #include <linux/err.h> @@ -81,11 +82,9 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write, return -EFAULT; } else { len = *count; - rc = copy_from_user(buf, buffer, sizeof(buf)); - if (rc != 0) - return -EFAULT; - if (strict_strtoul(buf, 0, &val) != 0) - return -EINVAL; + rc = kstrtoul_from_user(buffer, len, 0, &val); + if (rc) + return rc; if (val != 0 && val != 1) return -EINVAL; callhome_enabled = val; @@ -101,18 +100,17 @@ static struct ctl_table callhome_table[] = { .mode = 0644, .proc_handler = proc_handler_callhome, }, - { .ctl_name = 0 } + {} }; static struct ctl_table kern_dir_table[] = { { - .ctl_name = CTL_KERN, .procname = "kernel", .maxlen = 0, .mode = 0555, .child = callhome_table, }, - { .ctl_name = 0 } + {} }; /* |