Merge tag 'dmaengine-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul...

[sfrench/cifs-2.6.git] / drivers / dma / idxd / sysfs.c

diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index d482e708f0faf48b3f1f1711a61386022ab9ae9a..3f262a57441b47bda8a124462f48254b633d25d9 100644 (file)
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -911,6 +911,9 @@ static ssize_t wq_max_transfer_size_store(struct device *dev, struct device_attr
        u64 xfer_size;
        int rc;
 
+       if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
+               return -EPERM;
+
        if (wq->state != IDXD_WQ_DISABLED)
                return -EPERM;
 
@@ -945,6 +948,9 @@ static ssize_t wq_max_batch_size_store(struct device *dev, struct device_attribu
        u64 batch_size;
        int rc;
 
+       if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
+               return -EPERM;
+
        if (wq->state != IDXD_WQ_DISABLED)
                return -EPERM;