36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From b171f889bdc8d4e11af8bc6ea947860536d7ade8 Mon Sep 17 00:00:00 2001
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From: Leon Romanovsky <leonro@mellanox.com>
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Date: Wed, 27 Dec 2017 09:57:51 +0200
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Subject: [PATCH 3/6] rdma: Protect dev_map_lookup from wrong input
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Despite the fact that all callers to dev_map_lookup are ensuring that
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there is always device name prior to call to that function, it is better
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and safer to check that in the dev_map_lookup itself.
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Fixes: 40df8263a0f0 ("rdma: Add dev object")
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Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
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Signed-off-by: David Ahern <dsahern@gmail.com>
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(cherry picked from commit 99da90326e6af8e17400a01cf48bb60606dd22a6)
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Signed-off-by: Phil Sutter <psutter@redhat.com>
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---
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rdma/utils.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/rdma/utils.c b/rdma/utils.c
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index 6ce1fd70e058f..bb29fa1a2386e 100644
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--- a/rdma/utils.c
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+++ b/rdma/utils.c
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@@ -253,6 +253,9 @@ struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index)
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char *dev_name;
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char *slash;
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+ if (rd_no_arg(rd))
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+ return NULL;
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+
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dev_name = strdup(rd_argv(rd));
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if (allow_port_index) {
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slash = strrchr(dev_name, '/');
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--
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2.15.1
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