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Subject[PATCH 5/5] tee: tee_shm_op_mmap(): use TEE_SHM_USER_MAPPED
Date
tee_shm_op_mmap() uses the TEE_SHM_USER_MAPPED flag instead of the
TEE_SHM_REGISTER flag to tell if a shared memory object is originating
from registered user space memory.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
---
drivers/tee/tee_shm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index c64ec5c5e464..deb22f877881 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -81,7 +81,7 @@ static int tee_shm_op_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
size_t size = vma->vm_end - vma->vm_start;

/* Refuse sharing shared memory provided by application */
- if (shm->flags & TEE_SHM_REGISTER)
+ if (shm->flags & TEE_SHM_USER_MAPPED)
return -EINVAL;

return remap_pfn_range(vma, vma->vm_start, shm->paddr >> PAGE_SHIFT,
--
2.17.1
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