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authorBryan O'Sullivan <bos@pathscale.com>2006-07-01 04:35:55 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-01 09:55:59 -0700
commit4a45b7d4ece0e6dc425e9f66fa8b501b72d846db (patch)
tree6e858b3343ffb3670eb6f5a838479d52791e0a30 /drivers/infiniband/hw/ipath/ipath_mr.c
parent6665ddee85bfc336d691ea5132a2c20a1d0e8053 (diff)
[PATCH] IB/ipath: don't allow resources to be created with illegal values
Signed-off-by: Robert Walsh <robert.walsh@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mr.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_mr.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c
index 30936769ab3..4ac31a5da33 100644
--- a/drivers/infiniband/hw/ipath/ipath_mr.c
+++ b/drivers/infiniband/hw/ipath/ipath_mr.c
@@ -170,6 +170,11 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
int n, m, i;
struct ib_mr *ret;
+ if (region->length == 0) {
+ ret = ERR_PTR(-EINVAL);
+ goto bail;
+ }
+
n = 0;
list_for_each_entry(chunk, &region->chunk_list, list)
n += chunk->nents;