linux-yocto/drivers/dma-buf
Christian König 09064e6d65 dma-buf: fix timeout handling in dma_resv_wait_timeout v2
[ Upstream commit 2b95a7db6e ]

Even the kerneldoc says that with a zero timeout the function should not
wait for anything, but still return 1 to indicate that the fences are
signaled now.

Unfortunately that isn't what was implemented, instead of only returning
1 we also waited for at least one jiffies.

Fix that by adjusting the handling to what the function is actually
documented to do.

v2: improve code readability

Reported-by: Marek Olšák <marek.olsak@amd.com>
Reported-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20250129105841.1806-1-christian.koenig@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:30:52 +02:00
..
heaps
dma-buf-sysfs-stats.c
dma-buf-sysfs-stats.h
dma-buf.c
dma-fence-array.c dma-buf: fix dma_fence_array_signaled v4 2024-12-14 19:51:33 +01:00
dma-fence-chain.c
dma-fence-unwrap.c
dma-fence.c
dma-heap.c
dma-resv.c dma-buf: fix timeout handling in dma_resv_wait_timeout v2 2025-07-17 18:30:52 +02:00
Kconfig
Makefile
selftest.c
selftest.h
selftests.h
seqno-fence.c
st-dma-fence-chain.c
st-dma-fence.c
sw_sync.c
sync_debug.c
sync_debug.h
sync_file.c
sync_trace.h
udmabuf.c udmabuf: use sgtable-based scatterlist wrappers 2025-06-27 11:05:34 +01:00