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kernel_xiaomi_sm8250/lib
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Geert Uytterhoeven 6a8b02ead7 PCI: Fix pci_register_io_range() memory leak 
[ Upstream commit f6bda644fa3a7070621c3bf12cd657f69a42f170 ]

Kmemleak reports:

  unreferenced object 0xc328de40 (size 64):
    comm "kworker/1:1", pid 21, jiffies 4294938212 (age 1484.670s)
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 e0 d8 fc eb 00 00 00 00  ................
      00 00 10 fe 00 00 00 00 00 00 00 00 00 00 00 00  ................

  backtrace:
    [<ad758d10>] pci_register_io_range+0x3c/0x80
    [<2c7f139e>] of_pci_range_to_resource+0x48/0xc0
    [<f079ecc8>] devm_of_pci_get_host_bridge_resources.constprop.0+0x2ac/0x3ac
    [<e999753b>] devm_of_pci_bridge_init+0x60/0x1b8
    [<a895b229>] devm_pci_alloc_host_bridge+0x54/0x64
    [<e451ddb0>] rcar_pcie_probe+0x2c/0x644

In case a PCI host driver's probe is deferred, the same I/O range may be
allocated again, and be ignored, causing a memory leak.

Fix this by (a) letting logic_pio_register_range() return -EEXIST if the
passed range already exists, so pci_register_io_range() will free it, and
by (b) making pci_register_io_range() not consider -EEXIST an error
condition.

Link: https://lore.kernel.org/r/20210202100332.829047-1-geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-17 16:43:46 +01:00
..
842
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fonts
Fonts: Replace discarded const qualifier
2020-11-10 12:35:57 +01:00
lz4
…
lzo
…
mpi
lib/mpi: Fix 64-bit MIPS build with Clang
2020-06-22 09:05:14 +02:00
raid6
lib/raid6: use vdupq_n_u8 to avoid endianness warnings
2020-04-23 10:30:15 +02:00
reed_solomon
rslib: Fix handling of of caller provided syndrome
2019-07-26 09:14:12 +02:00
xz
lib/xz: Put CRC32_POLY_LE in xz_private.h
2018-10-02 08:44:59 +10:00
zlib_deflate
…
zlib_inflate
lib/zlib: remove outdated and incorrect pre-increment optimization
2020-06-25 15:33:02 +02:00
zstd
…
.gitignore
lib: add crc64 calculation routines
2018-08-22 10:52:48 -07:00
argv_split.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
ashldi3.c
…
ashrdi3.c
…
asn1_decoder.c
…
assoc_array.c
assoc_array: Fix shortcut creation
2019-03-23 20:09:48 +01:00
atomic64_test.c
…
atomic64.c
atomics/generic: Define atomic64_fetch_add_unless()
2018-06-21 14:25:21 +02:00
audit.c
…
bcd.c
…
bch.c
lib/bch: fix possible stack overrun
2018-10-12 09:17:46 +02:00
bitmap.c
lib/bitmap.c: fix remaining space computation in bitmap_print_to_pagebuf
2019-12-01 09:17:08 +01:00
bitrev.c
…
bsearch.c
kprobes: Prohibit probing on bsearch()
2019-04-05 22:33:08 +02:00
btree.c
…
bucket_locks.c
ila: make lockdep happy again
2018-08-16 12:14:42 -07:00
bug.c
…
build_OID_registry
…
bust_spinlocks.c
…
chacha20.c
crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
2019-11-20 18:47:11 +01:00
check_signature.c
…
checksum.c
…
clz_ctz.c
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clz_tab.c
…
cmdline.c
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cmpdi2.c
…
compat_audit.c
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cordic.c
…
cpu_rmap.c
…
cpumask.c
…
crc4.c
…
crc7.c
…
crc8.c
…
crc16.c
…
crc32.c
lib/crc32.c: fix trivial typo in preprocessor condition
2020-10-30 10:38:21 +01:00
crc32defs.h
lib/crc: Move polynomial definition to separate header
2018-07-27 19:04:33 +08:00
crc32test.c
lib/crc32test: remove extra local_irq_disable/enable
2020-11-10 12:35:57 +01:00
crc64.c
lib: add crc64 calculation routines
2018-08-22 10:52:48 -07:00
crc-ccitt.c
…
crc-itu-t.c
…
crc-t10dif.c
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ctype.c
…
debug_info.c
…
debug_locks.c
locking/lockdep: Fix debug_locks off performance problem
2018-11-13 11:08:20 -08:00
debugobjects.c
debugobjects: avoid recursive calls with kmemleak
2018-12-17 09:24:41 +01:00
dec_and_lock.c
atomic: Add irqsave variant of atomic_dec_and_lock()
2018-06-12 23:33:24 +02:00
decompress_bunzip2.c
lib: Use existing define with polynomial
2018-07-27 19:16:38 +08:00
decompress_inflate.c
…
decompress_unlz4.c
…
decompress_unlzma.c
…
decompress_unlzo.c
…
decompress_unxz.c
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decompress.c
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devres.c
lib: devres: add a helper function for ioremap_uc
2020-05-10 10:30:11 +02:00
digsig.c
…
div64.c
lib/div64.c: off by one in shift
2019-04-20 09:16:05 +02:00
dump_stack.c
dump_stack: avoid the livelock of the dump_lock
2019-11-12 19:20:37 +01:00
dynamic_debug.c
dyndbg: fix a BUG_ON in ddebug_describe_flags
2020-08-19 08:14:53 +02:00
dynamic_queue_limits.c
…
earlycpio.c
…
error-inject.c
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errseq.c
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extable.c
…
fault-inject.c
…
fdt_empty_tree.c
…
fdt_ro.c
…
fdt_rw.c
…
fdt_strerror.c
…
fdt_sw.c
…
fdt_wip.c
…
fdt.c
…
find_bit_benchmark.c
lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit()
2018-05-11 17:28:45 -07:00
find_bit.c
uapi: rename ext2_swab() to swab() and share globally in swab.h
2020-04-17 10:48:43 +02:00
flex_array.c
…
flex_proportions.c
…
gcd.c
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gen_crc32table.c
lib/crc: Use consistent naming for CRC-32 polynomials
2018-07-27 19:04:33 +08:00
gen_crc64table.c
lib: add crc64 calculation routines
2018-08-22 10:52:48 -07:00
genalloc.c
lib/genalloc: fix the overflow when size is too big
2021-01-12 20:10:16 +01:00
glob.c
…
globtest.c
…
hexdump.c
…
hweight.c
…
idr.c
idr: Fix idr_get_next_ul race with idr_remove
2019-12-17 20:36:02 +01:00
inflate.c
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int_sqrt.c
fix int_sqrt64() for very large numbers
2019-01-22 21:40:34 +01:00
interval_tree_test.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
interval_tree.c
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iomap_copy.c
…
iomap.c
…
iommu-helper.c
iommu-helper: mark iommu_is_span_boundary as inline
2018-05-09 06:55:44 +02:00
ioremap.c
ioremap: Update pgtable free interfaces with addr
2018-07-04 21:37:08 +02:00
iov_iter.c
iov_iter: optimize page_copy_sane()
2019-05-22 07:37:45 +02:00
irq_poll.c
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irq_regs.c
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is_single_threaded.c
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jedec_ddr_data.c
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kasprintf.c
…
Kconfig
lib/Kconfig: remove 'default n' for tests
2018-08-22 10:52:48 -07:00
Kconfig.debug
kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K
2019-10-07 18:57:17 +02:00
Kconfig.kasan
kasan: only select SLUB_DEBUG with SYSFS=y
2018-07-26 19:38:03 -07:00
Kconfig.kgdb
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Kconfig.ubsan
lib/ubsan: remove null-pointer checks
2018-08-10 20:19:58 -07:00
kfifo.c
Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()"
2020-01-27 14:51:08 +01:00
klist.c
scsi: klist: Make it safe to use klists in atomic context
2018-07-02 16:20:23 -04:00
kobject_uevent.c
kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice.
2019-05-31 06:46:28 -07:00
kobject.c
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2018-08-18 11:44:53 -07:00
kstrtox.c
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kstrtox.h
…
lcm.c
…
libcrc32c.c
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list_debug.c
…
list_sort.c
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llist.c
…
locking-selftest-hardirq.h
…
locking-selftest-mutex.h
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locking-selftest-rlock-hardirq.h
…
locking-selftest-rlock-softirq.h
…
locking-selftest-rlock.h
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locking-selftest-rsem.h
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locking-selftest-rtmutex.h
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locking-selftest-softirq.h
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locking-selftest-spin-hardirq.h
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locking-selftest-spin-softirq.h
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locking-selftest-spin.h
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locking-selftest-wlock-hardirq.h
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locking-selftest-wlock-softirq.h
…
locking-selftest-wlock.h
…
locking-selftest-wsem.h
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locking-selftest.c
locking: Implement an algorithm choice for Wound-Wait mutexes
2018-07-03 09:44:36 +02:00
lockref.c
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logic_pio.c
PCI: Fix pci_register_io_range() memory leak
2021-03-17 16:43:46 +01:00
lru_cache.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
lshrdi3.c
…
Makefile
ubsan: build ubsan.c more conservatively
2020-05-27 17:37:27 +02:00
memory-notifier-error-inject.c
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memweight.c
…
muldi3.c
…
net_utils.c
…
netdev-notifier-error-inject.c
…
nlattr.c
netlink: Return extack message if attribute validation fails
2018-06-28 16:18:04 +09:00
nmi_backtrace.c
printk/nmi: Prevent deadlock when accessing the main log buffer in NMI
2018-07-09 14:10:40 +02:00
nodemask.c
…
notifier-error-inject.c
…
notifier-error-inject.h
…
of-reconfig-notifier-error-inject.c
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oid_registry.c
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once.c
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parman.c
…
parser.c
…
pci_iomap.c
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percpu_counter.c
notifier: Remove notifier header file wherever not used
2018-08-30 12:56:40 +02:00
percpu_test.c
…
percpu-refcount.c
…
plist.c
…
pm-notifier-error-inject.c
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prime_numbers.c
…
radix-tree.c
idr: Fix idr_alloc_u32 on 32-bit systems
2019-12-05 09:19:40 +01:00
random32.c
random32: make prandom_u32() output unpredictable
2020-11-18 19:18:52 +01:00
ratelimit.c
…
rational.c
…
rbtree_test.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
rbtree.c
…
reciprocal_div.c
lib: reciprocal_div: implement the improved algorithm on the paper mentioned
2018-07-07 01:45:31 +02:00
refcount.c
Merge tag 'v4.18-rc5' into locking/core, to pick up fixes
2018-07-17 09:27:43 +02:00
rhashtable.c
rhashtable: Still do rehash when we get EEXIST
2019-04-03 06:26:17 +02:00
sbitmap.c
sbitmap: fix improper use of smp_mb__before_atomic()
2019-05-31 06:46:00 -07:00
scatterlist.c
sgl_alloc_order: fix memory leak
2020-11-05 11:08:45 +01:00
seq_buf.c
seq_buf: Make seq_buf_puts() null-terminate the buffer
2019-02-12 19:47:16 +01:00
sg_pool.c
…
sg_split.c
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sha1.c
…
sha256.c
…
show_mem.c
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siphash.c
…
smp_processor_id.c
…
sort.c
…
stackdepot.c
lib/stackdepot.c: fix global out-of-bounds in stack_slabs
2020-02-28 16:38:55 +01:00
stmp_device.c
…
string_helpers.c
…
string.c
lib/string: Add strscpy_pad() function
2021-02-13 13:51:15 +01:00
strncpy_from_user.c
lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()
2020-06-22 09:04:59 +02:00
strnlen_user.c
lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()
2020-06-22 09:04:59 +02:00
syscall.c
…
test_bitfield.c
bitfield: add tests
2018-06-27 18:58:49 +03:00
test_bitmap.c
lib/test_bitmap.c: fix bitmap optimisation tests to report errors correctly
2018-05-18 17:17:12 -07:00
test_bpf.c
test_bpf: flag tests that cannot be jited on s390
2018-06-28 23:58:39 +02:00
test_debug_virtual.c
lib: fix build failure in CONFIG_DEBUG_VIRTUAL test
2019-01-13 09:51:10 +01:00
test_firmware.c
test_firmware: fix a memory leak bug
2019-08-16 10:12:49 +02:00
test_hash.c
…
test_hexdump.c
test_hexdump: use memcpy instead of strncpy
2018-12-08 12:59:06 +01:00
test_ida.c
test_ida: Fix lockdep warning
2018-10-15 16:31:29 -04:00
test_kasan.c
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
2020-02-11 04:33:57 -08:00
test_kmod.c
test_kmod: avoid potential double free in trigger_config_run_type()
2020-08-21 11:05:38 +02:00
test_list_sort.c
…
test_module.c
…
test_overflow.c
lib/test_overflow.c: avoid tainting the kernel and fix wrap size
2019-08-06 19:06:51 +02:00
test_parman.c
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test_printf.c
Revert "lib/test_printf.c: call wait_for_random_bytes() before plain %p tests"
2018-06-25 13:44:20 +02:00
test_rhashtable.c
lib/test_rhashtable: Make test_insert_dup() allocate its hash table dynamically
2019-02-12 19:47:21 +01:00
test_siphash.c
…
test_sort.c
…
test_static_key_base.c
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test_static_keys.c
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test_string.c
lib/test_string.c: avoid masking memset16/32/64 failures
2019-08-06 19:06:51 +02:00
test_sysctl.c
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test_ubsan.c
…
test_user_copy.c
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test_uuid.c
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test-kstrtox.c
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test-string_helpers.c
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textsearch.c
lib: textsearch: fix escapes in example code
2019-10-29 09:19:35 +01:00
timerqueue.c
…
ts_bm.c
…
ts_fsm.c
…
ts_kmp.c
…
ubsan.c
ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings
2019-05-10 17:54:04 +02:00
ubsan.h
…
ucmpdi2.c
…
ucs2_string.c
lib/ucs2_string.c: add MODULE_LICENSE()
2018-06-07 17:34:39 -07:00
usercopy.c
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uuid.c
…
vsprintf.c
vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers
2018-10-05 10:17:15 -04:00
win_minmax.c
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xxhash.c
…