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path: root/drivers/block/loop.c
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Diffstat (limited to 'drivers/block/loop.c')
-rw-r--r--drivers/block/loop.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 1518a6423279..5f04235e4ff7 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -90,7 +90,7 @@ struct loop_cmd {
};
#define LOOP_IDLE_WORKER_TIMEOUT (60 * HZ)
-#define LOOP_DEFAULT_HW_Q_DEPTH (128)
+#define LOOP_DEFAULT_HW_Q_DEPTH 128
static DEFINE_IDR(loop_index_idr);
static DEFINE_MUTEX(loop_ctl_mutex);
@@ -1792,9 +1792,15 @@ static int hw_queue_depth = LOOP_DEFAULT_HW_Q_DEPTH;
static int loop_set_hw_queue_depth(const char *s, const struct kernel_param *p)
{
- int ret = kstrtoint(s, 10, &hw_queue_depth);
+ int qd, ret;
- return (ret || (hw_queue_depth < 1)) ? -EINVAL : 0;
+ ret = kstrtoint(s, 0, &qd);
+ if (ret < 0)
+ return ret;
+ if (qd < 1)
+ return -EINVAL;
+ hw_queue_depth = qd;
+ return 0;
}
static const struct kernel_param_ops loop_hw_qdepth_param_ops = {
@@ -1803,7 +1809,7 @@ static const struct kernel_param_ops loop_hw_qdepth_param_ops = {
};
device_param_cb(hw_queue_depth, &loop_hw_qdepth_param_ops, &hw_queue_depth, 0444);
-MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 128");
+MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: " __stringify(LOOP_DEFAULT_HW_Q_DEPTH));
MODULE_LICENSE("GPL");
MODULE_ALIAS_BLOCKDEV_MAJOR(LOOP_MAJOR);