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| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2020-04-22 16:24:47 +0900 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-05-05 12:23:07 +0100 |
| commit | 0e86d981f9b7252e9716c5137cd8e4d9ad8ef32f (patch) | |
| tree | d56c72b3439bf828306e86bfa3c4db249626ffc9 /drivers/acpi | |
| parent | 8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff) | |
PCI: endpoint: functions/pci-epf-test: Fix DMA channel release
When unbinding pci_epf_test, pci_epf_test_clean_dma_chan() is called in
pci_epf_test_unbind() even though epf_test->dma_supported is false.
As a result, dma_release_channel() will trigger a NULL pointer
dereference because dma_chan is not set.
Avoid calling dma_release_channel() if epf_test->dma_supported
is false.
Link: https://lore.kernel.org/r/1587540287-10458-1-git-send-email-hayashi.kunihiko@socionext.com
Fixes: 5ebf3fc59bd2 ("PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/acpi')
0 files changed, 0 insertions, 0 deletions