Kunihiko Hayashi 0e86d981f9 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: 5ebf3fc59b ("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>		2020-05-05 12:23:07 +01:00
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controller	pci-v5.7-changes	2020-04-03 14:25:02 -07:00
endpoint	PCI: endpoint: functions/pci-epf-test: Fix DMA channel release	2020-05-05 12:23:07 +01:00
hotplug	powerpc updates for 5.7	2020-04-05 11:12:59 -07:00
pcie	pci-v5.7-changes	2020-04-03 14:25:02 -07:00
switch	pci/switchtec: Replace completion wait queue usage for poll	2020-03-21 16:00:20 +01:00
access.c	PCI/AER: Save AER Capability for suspend/resume	2019-10-18 17:05:42 -05:00
ats.c	PCI/ATS: Export symbols of PASID functions	2020-03-18 21:32:25 +00:00
bus.c	PCI: Unexport pci_bus_get() and pci_bus_put()	2019-07-23 18:32:49 -05:00
ecam.c	PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate	2018-01-28 15:48:29 -06:00
host-bridge.c	PCI: Tidy comments	2018-03-19 14:20:43 -05:00
iov.c	PCI/IOV: Fix memory leak in pci_iov_add_virtfn()	2019-12-09 15:51:32 -06:00
irq.c	PCI: Use IRQF_ONESHOT if pci_request_irq() called with no handler	2018-07-31 10:43:43 -05:00
Kconfig	Merge branch 'pci/trivial'	2019-11-28 08:54:55 -06:00
Makefile	PCI: Allow building PCIe things without PCIEPORTBUS	2019-11-21 07:52:33 -06:00
mmap.c	PCI: Fix typos and whitespace errors	2019-07-09 07:24:53 -05:00
msi.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
of.c	PCI: Make devm_of_pci_get_host_bridge_resources() static	2019-11-20 17:00:14 +00:00
p2pdma.c	PCI/P2PDMA: Add Intel Sky Lake-E Root Ports B, C, D to the whitelist	2020-03-18 18:09:07 -05:00
pci-acpi.c	Merge branch 'pci/misc'	2020-04-02 14:26:38 -05:00
pci-bridge-emul.c	PCI: pci-bridge-emul: Use new constant PCI_STATUS_ERROR_BITS	2020-03-04 14:21:00 -08:00
pci-bridge-emul.h	PCI: pci-bridge-emul: Fix big-endian support	2019-10-17 12:42:48 +01:00
pci-driver.c	PCI/PM: Add missing link delays required by the PCIe spec	2019-11-20 17:37:24 -06:00
pci-label.c	PCI: Tidy comments	2018-03-19 14:20:43 -05:00
pci-mid.c	PCI: intel-mid: Convert to new X86 CPU match macros	2020-03-24 21:35:06 +01:00
pci-pf-stub.c	PCI: Fix typos and whitespace errors	2019-07-09 07:24:53 -05:00
pci-stub.c	PCI: Replace printk(KERN_INFO) with pr_info(), etc	2019-05-09 07:49:54 -05:00
pci-sysfs.c	Merge branch 'pci/misc'	2020-04-02 14:26:38 -05:00
pci.c	pci-v5.7-changes	2020-04-03 14:25:02 -07:00
pci.h	Merge branch 'pci/enumeration'	2020-04-02 14:26:32 -05:00
probe.c	Merge branch 'pci/enumeration'	2020-04-02 14:26:32 -05:00
proc.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
quirks.c	Merge branch 'pci/virtualization'	2020-04-02 14:26:45 -05:00
remove.c	PCI/ASPM: Fix link_state teardown on device removal	2018-09-17 16:32:23 -05:00
rom.c	PCI: Use ioremap(), not phys_to_virt() for platform ROM	2020-03-30 09:52:23 -05:00
search.c	Merge branch 'pci/host-vmd'	2020-01-29 17:00:02 -06:00
setup-bus.c	PCI: Add support for root bus sizing	2020-03-30 09:52:34 -05:00
setup-irq.c	PCI: Tidy comments	2018-03-19 14:20:43 -05:00
setup-res.c	PCI: Remove messages about reassigning resources	2018-04-11 08:46:50 -05:00
slot.c	PCI: Add pci_speed_string()	2020-03-10 14:05:33 -05:00
syscall.c	PCI: Lock down BAR access when the kernel is locked down	2019-08-19 21:54:15 -07:00
vc.c	Merge branch 'pci/trivial'	2019-09-23 16:10:31 -05:00
vpd.c	PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port	2019-09-16 14:10:09 +01:00
xen-pcifront.c	Merge branch 'pci/printk'	2019-05-13 18:34:46 -05:00