Since the variable nr_devices is an unsigned int, the module_param() should also use this type. Change the type so they can match. Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxxxxx> Fixes: f7c4ce890dd2 ("null_blk: validate the number of devices") --- Changes since v1: - Add "Fixes" tag --- drivers/block/null_blk_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index be32cb5ed339..5d20d65041bd 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -142,7 +142,7 @@ module_param_named(bs, g_bs, int, 0444); MODULE_PARM_DESC(bs, "Block size (in bytes)"); static unsigned int nr_devices = 1; -module_param(nr_devices, int, 0444); +module_param(nr_devices, uint, 0444); MODULE_PARM_DESC(nr_devices, "Number of devices to register"); static bool g_blocking; -- 2.23.0