diff options
| author |   Daniel Vetter <[email protected]> | 2020-04-07 15:30:02 +0200 |
|---|---|---|
| committer |   Sumit Semwal <[email protected]> | 2020-04-27 16:29:41 +0530 |
| commit | a5bff92eaac45bdf6221badf9505c26792fdf99e (patch) | |
| tree | a12728f7c2d44acebd9711ee52ea8c89c3e72cf0 /drivers/dma-buf | |
| parent | drm/edid: Fix off-by-one in DispID DTD pixel clock (diff) | |
| download | wireguard-linux-a5bff92eaac45bdf6221badf9505c26792fdf99e.tar.xz wireguard-linux-a5bff92eaac45bdf6221badf9505c26792fdf99e.zip | |
dma-buf: Fix SET_NAME ioctl uapi
The uapi is the same on 32 and 64 bit, but the number isn't. Everyone
who botched this please re-read:
https://www.kernel.org/doc/html/v5.4-preprc-cpu/ioctl/botching-up-ioctls.html
Also, the type argument for the ioctl macros is for the type the void
__user *arg pointer points at, which in this case would be the
variable-sized char[] of a 0 terminated string. So this was botched in
more than just the usual ways.
Cc: Sumit Semwal <[email protected]>
Cc: Chenbo Feng <[email protected]>
Cc: Greg Hackmann <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Martin Liu <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Tested-by: Martin Liu <[email protected]>
Reviewed-by: Martin Liu <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
[sumits: updated some checkpatch fixes, corrected author email]
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-buf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index ccc9eda1bc28..de155d41d274 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -388,7 +388,8 @@ static long dma_buf_ioctl(struct file *file, return ret; - case DMA_BUF_SET_NAME: + case DMA_BUF_SET_NAME_A: + case DMA_BUF_SET_NAME_B: return dma_buf_set_name(dmabuf, (const char __user *)arg); default: |