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author | Andreas Larsson <andreas@gaisler.com> | 2021-09-08 10:48:22 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-30 11:11:06 +0300 |
commit | 54a4860c6257f4575968998939952bd1aa9dcbce (patch) | |
tree | 7381d513343e8016d82022cd68523708026314a2 /arch/sparc | |
parent | ecf0dc5a904830c926a64feffd8e01141f89822f (diff) | |
download | linux-54a4860c6257f4575968998939952bd1aa9dcbce.tar.xz |
sparc32: page align size in arch_dma_alloc
[ Upstream commit 59583f747664046aaae5588d56d5954fab66cce8 ]
Commit 53b7670e5735 ("sparc: factor the dma coherent mapping into
helper") lost the page align for the calls to dma_make_coherent and
srmmu_unmapiorange. The latter cannot handle a non page aligned len
argument.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/sparc')
-rw-r--r-- | arch/sparc/kernel/ioport.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 8e1d72a16759..7ceae24b0ca9 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -356,7 +356,9 @@ err_nomem: void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr, unsigned long attrs) { - if (!sparc_dma_free_resource(cpu_addr, PAGE_ALIGN(size))) + size = PAGE_ALIGN(size); + + if (!sparc_dma_free_resource(cpu_addr, size)) return; dma_make_coherent(dma_addr, size); |