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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-27 18:54:13 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-27 18:54:13 +0100
commit8f677bc819e7a74cf10e30daf06e8b151d1e6a94 (patch)
tree379e4e32a06dfb6d2ca3519ca4ef6b7507fad197 /drivers/base/memory.c
parentdocs: driver-model: Add documentation for sync_state (diff)
parentLinux 5.4-rc5 (diff)
downloadwireguard-linux-8f677bc819e7a74cf10e30daf06e8b151d1e6a94.tar.xz
wireguard-linux-8f677bc819e7a74cf10e30daf06e8b151d1e6a94.zip
Merge 5.4-rc5 into driver-core-next
We want the sysfs fix in here as well to build on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/memory.c')
-rw-r--r--drivers/base/memory.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 6bea4f3f8040..55907c27075b 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -540,6 +540,9 @@ static ssize_t soft_offline_page_store(struct device *dev,
pfn >>= PAGE_SHIFT;
if (!pfn_valid(pfn))
return -ENXIO;
+ /* Only online pages can be soft-offlined (esp., not ZONE_DEVICE). */
+ if (!pfn_to_online_page(pfn))
+ return -EIO;
ret = soft_offline_page(pfn_to_page(pfn), 0);
return ret == 0 ? count : ret;
}