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| author | Jingoo Han <jingoohan1@gmail.com> | 2015-06-18 00:12:27 +0900 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2015-06-23 10:17:40 -0500 |
| commit | 294240ffe784e951dc2ef070da04fa31ef6db3a0 (patch) | |
| tree | 0bb96bd339fc6326bd4b876f4695ebc8f105465f /drivers/of | |
| parent | 72d942e23cdab62fba0337403db218dcc9973494 (diff) | |
| download | op-kernel-dev-294240ffe784e951dc2ef070da04fa31ef6db3a0.zip op-kernel-dev-294240ffe784e951dc2ef070da04fa31ef6db3a0.tar.gz | |
of/address: use atomic allocation in pci_register_io_range()
When kzalloc() is called under spin_lock(), GFP_ATOMIC should be
used to avoid sleeping allocation.
The call tree is:
of_pci_range_to_resource()
--> pci_register_io_range() <-- takes spin_lock(&io_range_lock);
--> kzalloc()
Signed-off-by: Jingoo Han <jingoohan1@gmail.com>
Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/address.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 78a7dcb..65c3289 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -712,7 +712,7 @@ int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size) } /* add the range to the list */ - range = kzalloc(sizeof(*range), GFP_KERNEL); + range = kzalloc(sizeof(*range), GFP_ATOMIC); if (!range) { err = -ENOMEM; goto end_register; |
