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| author | John Stultz <john.stultz@linaro.org> | 2021-01-19 20:45:06 +0000 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@linaro.org> | 2021-02-24 21:04:25 +0530 |
| commit | cc84a8e65d87990ebb09f65a745b38e95b4d2721 (patch) | |
| tree | 195780383842da4dcfca325f0b7c9cf8764a3e65 /drivers/dma-buf | |
| parent | bfa5782b9caa26f93f42ad79804e1f75a1ce9f18 (diff) | |
| download | linux-stable-cc84a8e65d87990ebb09f65a745b38e95b4d2721.tar.gz linux-stable-cc84a8e65d87990ebb09f65a745b38e95b4d2721.tar.bz2 linux-stable-cc84a8e65d87990ebb09f65a745b38e95b4d2721.zip | |
dma-buf: system_heap: Make sure to return an error if we abort
If we abort from the allocation due to a fatal_signal_pending(),
be sure we report an error so any return code paths don't trip
over the fact that the allocation didn't succeed.
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Liam Mark <lmark@codeaurora.org>
Cc: Laura Abbott <labbott@kernel.org>
Cc: Brian Starkey <Brian.Starkey@arm.com>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sandeep Patil <sspatil@google.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Chris Goldsworthy <cgoldswo@codeaurora.org>
Cc: Ørjan Eide <orjan.eide@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Ezequiel Garcia <ezequiel@collabora.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: James Jones <jajones@nvidia.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Suggested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210119204508.9256-1-john.stultz@linaro.org
(cherry picked from commit 14a117252f57839bdf0123a1c888a96102e3a843)
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/heaps/system_heap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c index 17e0e9a68baf..405351aad2a8 100644 --- a/drivers/dma-buf/heaps/system_heap.c +++ b/drivers/dma-buf/heaps/system_heap.c @@ -363,8 +363,10 @@ static int system_heap_allocate(struct dma_heap *heap, * Avoid trying to allocate memory if the process * has been killed by SIGKILL */ - if (fatal_signal_pending(current)) + if (fatal_signal_pending(current)) { + ret = -EINTR; goto free_buffer; + } page = alloc_largest_available(size_remaining, max_order); if (!page) |