DYNAMIC_MINORS value has been set to 64. Due to this reason, we are facing a module loading fail problem of device driver like below.
[ 45.712771] pdic_misc_init - return error : -16 We need to increase this value for registering more misc devices. Signed-off-by: Sangmoon Kim <[email protected]> --- drivers/char/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/misc.c b/drivers/char/misc.c index f6a147427029..ca5141ed5ef3 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -60,7 +60,7 @@ static DEFINE_MUTEX(misc_mtx); /* * Assigned numbers, used for dynamic minors */ -#define DYNAMIC_MINORS 64 /* like dynamic majors */ +#define DYNAMIC_MINORS 128 /* like dynamic majors */ static DECLARE_BITMAP(misc_minors, DYNAMIC_MINORS); #ifdef CONFIG_PROC_FS -- 2.17.1
