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fix dma buffer fd leak

This commit is contained in:
Christian Meissl 2022-01-31 17:50:42 +01:00
parent 3c19df03e1
commit 8e8e1f7a94
1 changed files with 7 additions and 2 deletions
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9
src/backend/allocator/gbm.rs
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@ -96,14 +96,19 @@ impl<T> AsDmabuf for GbmBuffer<T> {
return Err(GbmConvertError::UnsupportedBuffer); //TODO return Err(GbmConvertError::UnsupportedBuffer); //TODO
} }
if self.fd()? == 0 { // Make sure to only call fd once as each call will create
// a new file descriptor which has to be closed
let fd = self.fd()?;
// gbm_bo_get_fd returns -1 if an error occurs
if fd == -1 {
return Err(GbmConvertError::InvalidFD); return Err(GbmConvertError::InvalidFD);
} }
let mut builder = Dmabuf::builder_from_buffer(self, DmabufFlags::empty()); let mut builder = Dmabuf::builder_from_buffer(self, DmabufFlags::empty());
for idx in 0..planes { for idx in 0..planes {
builder.add_plane( builder.add_plane(
self.fd()?, fd,
idx as u32, idx as u32,
self.offset(idx)?, self.offset(idx)?,
self.stride_for_plane(idx)?, self.stride_for_plane(idx)?,