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[v6,01/10] tee: tee_device_alloc(): copy dma_mask from parent device

Message ID 20250305130634.1850178-2-jens.wiklander@linaro.org
State New
Headers show
Series [v6,01/10] tee: tee_device_alloc(): copy dma_mask from parent device | expand

Commit Message

Jens Wiklander March 5, 2025, 1:04 p.m. UTC 
If a parent device is supplied to tee_device_alloc(), copy the dma_mask
field into the new device. This avoids future warnings when mapping a
DMA-buf for the device.

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

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index d113679b1e2d..685afcaa3ea1 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -922,6 +922,8 @@  struct tee_device *tee_device_alloc(const struct tee_desc *teedesc,
 	teedev->dev.class = &tee_class;
 	teedev->dev.release = tee_release_device;
 	teedev->dev.parent = dev;
+	if (dev)
+		teedev->dev.dma_mask = dev->dma_mask;
 
 	teedev->dev.devt = MKDEV(MAJOR(tee_devt), teedev->id);