Yuan Can 7e475cf97c ntb: intel: Fix error handling in intel_ntb_pci_driver_init() ... [ Upstream commit 4c3c796aca ] A problem about ntb_hw_intel create debugfs failed is triggered with the following log given: [ 273.112733] Intel(R) PCI-E Non-Transparent Bridge Driver 2.0 [ 273.115342] debugfs: Directory 'ntb_hw_intel' with parent '/' already present! The reason is that intel_ntb_pci_driver_init() returns pci_register_driver() directly without checking its return value, if pci_register_driver() failed, it returns without destroy the newly created debugfs, resulting the debugfs of ntb_hw_intel can never be created later. intel_ntb_pci_driver_init() debugfs_create_dir() # create debugfs directory pci_register_driver() driver_register() bus_add_driver() priv = kzalloc(...) # OOM happened # return without destroy debugfs directory Fix by removing debugfs when pci_register_driver() returns error. Fixes: e26a5843f7 ("NTB: Split ntb_hw_intel and ntb_transport drivers") Signed-off-by: Yuan Can <yuancan@huawei.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-07-23 13:47:42 +02:00
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amd	NTB: amd: Fix error handling in amd_ntb_pci_driver_init()	2023-07-23 13:47:42 +02:00
epf	…
idt	ntb: idt: Fix error handling in idt_pci_driver_init()	2023-07-23 13:47:42 +02:00
intel	ntb: intel: Fix error handling in intel_ntb_pci_driver_init()	2023-07-23 13:47:42 +02:00
mscc	…
Kconfig	…
Makefile	…