diff options
| -rw-r--r-- | drivers/char/random.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 612e45e88077..ede97649c5dd 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1631,6 +1631,13 @@ static int proc_do_uuid(struct ctl_table *table, int write, void *buffer, return proc_dostring(&fake_table, 0, buffer, lenp, ppos); } +/* The same as proc_dointvec, but writes don't change anything. */ +static int proc_do_rointvec(struct ctl_table *table, int write, void *buffer, + size_t *lenp, loff_t *ppos) +{ + return write ? 0 : proc_dointvec(table, 0, buffer, lenp, ppos); +} + static struct ctl_table random_table[] = { { .procname = "poolsize", @@ -1651,14 +1658,14 @@ static struct ctl_table random_table[] = { .data = &sysctl_random_write_wakeup_bits, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_do_rointvec, }, { .procname = "urandom_min_reseed_secs", .data = &sysctl_random_min_urandom_seed, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_do_rointvec, }, { .procname = "boot_id", |