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7edfe3df2a
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> |
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| .. | ||
| dw-edma-core.c | ||
| dw-edma-core.h | ||
| dw-edma-pcie.c | ||
| dw-edma-v0-core.c | ||
| dw-edma-v0-core.h | ||
| dw-edma-v0-debugfs.c | ||
| dw-edma-v0-debugfs.h | ||
| dw-edma-v0-regs.h | ||
| Kconfig | ||
| Makefile | ||