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path: root/drivers/rapidio/devices/rio_mport_cdev.c
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Diffstat (limited to 'drivers/rapidio/devices/rio_mport_cdev.c')
-rw-r--r--drivers/rapidio/devices/rio_mport_cdev.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index 9013a585507e..50b617af81bd 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -889,17 +889,16 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode,
goto err_req;
}
- down_read(&current->mm->mmap_sem);
- pinned = get_user_pages(
+ pinned = get_user_pages_unlocked(
(unsigned long)xfer->loc_addr & PAGE_MASK,
nr_pages,
- dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0,
- page_list, NULL);
- up_read(&current->mm->mmap_sem);
+ page_list,
+ dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0);
if (pinned != nr_pages) {
if (pinned < 0) {
- rmcd_error("get_user_pages err=%ld", pinned);
+ rmcd_error("get_user_pages_unlocked err=%ld",
+ pinned);
nr_pages = 0;
} else
rmcd_error("pinned %ld out of %ld pages",