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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-10-03 11:09:16 +0200
commit0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch)
tree1f675397b924846740b0931b066ddce6f3d7eb3d /drivers/infiniband/hw/hfi1/eprom.c
parent1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff)
parentebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff)
downloadtalos-op-linux-0d3c24e936feefeca854073ccb40613cd6eba9a9.tar.gz
talos-op-linux-0d3c24e936feefeca854073ccb40613cd6eba9a9.zip
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/eprom.c')
-rw-r--r--drivers/infiniband/hw/hfi1/eprom.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/eprom.c b/drivers/infiniband/hw/hfi1/eprom.c
index 26da124c88e2..1613af1c58d9 100644
--- a/drivers/infiniband/hw/hfi1/eprom.c
+++ b/drivers/infiniband/hw/hfi1/eprom.c
@@ -204,7 +204,10 @@ done_asic:
return ret;
}
-/* magic character sequence that trails an image */
+/* magic character sequence that begins an image */
+#define IMAGE_START_MAGIC "APO="
+
+/* magic character sequence that might trail an image */
#define IMAGE_TRAIL_MAGIC "egamiAPO"
/* EPROM file types */
@@ -263,6 +266,12 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data,
return ret;
}
+ /* config partition is valid only if it starts with IMAGE_START_MAGIC */
+ if (memcmp(buffer, IMAGE_START_MAGIC, strlen(IMAGE_START_MAGIC))) {
+ kfree(buffer);
+ return -ENOENT;
+ }
+
/* scan for image magic that may trail the actual data */
p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE);
if (p)
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