Messages in this thread Patch in this message | | | From | lizf@kernel ... | Subject | [PATCH 3.4 007/172] axonram: Fix bug in direct_access | Date | Tue, 16 Jun 2015 16:34:21 +0800 |
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From: Matthew Wilcox <matthew.r.wilcox@intel.com>
3.4.108-rc1 review patch. If anyone has any objections, please let me know.
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commit 91117a20245b59f70b563523edbf998a62fc6383 upstream.
The 'pfn' returned by axonram was completely bogus, and has been since 2008.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Zefan Li <lizefan@huawei.com> --- arch/powerpc/sysdev/axonram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 1c16141..1fea249 100644 --- a/arch/powerpc/sysdev/axonram.c +++ b/arch/powerpc/sysdev/axonram.c @@ -155,7 +155,7 @@ axon_ram_direct_access(struct block_device *device, sector_t sector, } *kaddr = (void *)(bank->ph_addr + offset); - *pfn = virt_to_phys(kaddr) >> PAGE_SHIFT; + *pfn = virt_to_phys(*kaddr) >> PAGE_SHIFT; return 0; } -- 1.9.1
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