diff options
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index a2854f6e0743..6a78cf70761d 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2511,6 +2511,15 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, } #endif +/** + * struct do_proc_dointvec_minmax_conv_param - proc_dointvec_minmax() range checking structure + * @min: pointer to minimum allowable value + * @max: pointer to maximum allowable value + * + * The do_proc_dointvec_minmax_conv_param structure provides the + * minimum and maximum values for doing range checking for those sysctl + * parameters that use the proc_dointvec_minmax() handler. + */ struct do_proc_dointvec_minmax_conv_param { int *min; int *max; @@ -2554,7 +2563,7 @@ static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, * This routine will ensure the values are within the range specified by * table->extra1 (min) and table->extra2 (max). * - * Returns 0 on success. + * Returns 0 on success or -EINVAL on write when the range check fails. */ int proc_dointvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) @@ -2567,6 +2576,15 @@ int proc_dointvec_minmax(struct ctl_table *table, int write, do_proc_dointvec_minmax_conv, ¶m); } +/** + * struct do_proc_douintvec_minmax_conv_param - proc_douintvec_minmax() range checking structure + * @min: pointer to minimum allowable value + * @max: pointer to maximum allowable value + * + * The do_proc_douintvec_minmax_conv_param structure provides the + * minimum and maximum values for doing range checking for those sysctl + * parameters that use the proc_douintvec_minmax() handler. + */ struct do_proc_douintvec_minmax_conv_param { unsigned int *min; unsigned int *max; @@ -2614,7 +2632,7 @@ static int do_proc_douintvec_minmax_conv(unsigned long *lvalp, * check for UINT_MAX to avoid having to support wrap around uses from * userspace. * - * Returns 0 on success. + * Returns 0 on success or -ERANGE on write when the range check fails. */ int proc_douintvec_minmax(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) |