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authorMatthew Wilcox <matthew.r.wilcox@intel.com>2015-01-07 18:04:18 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-06 14:40:50 -0800
commit9d8039b13aea028b16676c28fcac358ec24e7b3b (patch)
tree21f9e0b6324b2590d23954a149f2a1d2dabc5b60
parent8a9a6a13371bac27f6cd7c9fc52f9b1ee98c2ba4 (diff)
downloadlinux-linaro-stable-9d8039b13aea028b16676c28fcac358ec24e7b3b.tar.gz
axonram: Fix bug in direct_access
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/powerpc/sysdev/axonram.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 1c16141c031c..1fea24944ff4 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;
}