9p: potential NULL dereference
[ Upstream commit 72ea0321088df2c41eca8cc6160c24bcceb56ac7 ] p9_tag_alloc() is supposed to return error pointers, but we accidentally return a NULL here. It would cause a NULL dereference in the caller. Link: http://lkml.kernel.org/m/20180926103934.GA14535@mwanda Fixes: 996d5b4db4b1 ("9p: Use a slab for allocating requests") Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDominique Martinet <dominique.martinet@cea.fr> Signed-off-by: NSasha Levin <sashal@kernel.org>
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