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| author | Alan Mikhak <alan.mikhak@sifive.com> | 2020-04-23 03:58:21 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-04-27 18:01:08 +0200 |
| commit | 7edfe3df2a9f469d8e80e4e1877a92377b5722ae (patch) | |
| tree | 94bcbbfddea90825606b45d1695a250d874ef0f0 /scripts/get_abi.pl | |
| parent | dmaengine: ioat: adding missed issue_pending to timeout handler (diff) | |
| download | linux-7edfe3df2a9f469d8e80e4e1877a92377b5722ae.tar.xz linux-7edfe3df2a9f469d8e80e4e1877a92377b5722ae.zip | |
dmaengine: dw-edma: Check MSI descriptor before copying
Modify dw_edma_irq_request() to check if a struct msi_desc entry exists
before copying the contents of its struct msi_msg pointer.
Without this sanity check, __get_cached_msi_msg() crashes when invoked by
dw_edma_irq_request() running on a Linux-based PCIe endpoint device. MSI
interrupt are not received by PCIe endpoint devices. If irq_get_msi_desc()
returns null, then there is no cached struct msi_msg to be copied.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Link: https://lore.kernel.org/r/1587607101-31914-1-git-send-email-alan.mikhak@sifive.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'scripts/get_abi.pl')
0 files changed, 0 insertions, 0 deletions