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Hangyu Hua de65c32ace misc: ocxl: fix possible double free in ocxl_file_register_afu 
[ Upstream commit 950cf957fe34d40d63dfa3bf3968210430b6491e ]

info_release() will be called in device_unregister() when info->dev's
reference count is 0. So there is no need to call ocxl_afu_put() and
kfree() again.

Fix this by adding free_minor() and return to err_unregister error path.

Fixes: 75ca758adbaf ("ocxl: Create a clear delineation between ocxl backend & frontend")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220418085758.38145-1-hbh25y@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 18:11:40 +02:00
..
afu_irq.c
ocxl: move event_fd handling to frontend
2019-05-03 02:55:02 +10:00
config.c
ocxl: Update for AFU descriptor template version 1.1
2019-07-10 13:20:44 +10:00
context.c
ocxl: Fix potential memory leak on context creation
2020-01-12 12:21:31 +01:00
core.c
ocxl: Create a clear delineation between ocxl backend & frontend
2019-05-03 02:55:01 +10:00
file.c
misc: ocxl: fix possible double free in ocxl_file_register_afu
2022-06-14 18:11:40 +02:00
Kconfig
Merge 5.2-rc4 into char-misc-next
2019-06-09 09:11:21 +02:00
link.c
ocxl: Allow contexts to be attached with a NULL mm
2019-07-03 21:29:47 +02:00
main.c
powerpc/64s/radix: introduce options to disable use of the tlbie instruction
2019-09-05 14:22:41 +10:00
Makefile
ocxl: Provide global MMIO accessors for external drivers
2019-05-03 02:55:02 +10:00
mmio.c
ocxl: Provide global MMIO accessors for external drivers
2019-05-03 02:55:02 +10:00
ocxl_internal.h
ocxl: move event_fd handling to frontend
2019-05-03 02:55:02 +10:00
pasid.c
…
pci.c
ocxl: Make ocxl_remove() static
2019-05-28 12:08:11 +10:00
sysfs.c
ocxl: Create a clear delineation between ocxl backend & frontend
2019-05-03 02:55:01 +10:00
trace.c
…
trace.h
ocxl: afu_irq only deals with IRQ IDs, not offsets
2019-05-03 02:55:02 +10:00