diff mbox series

selftests: net: devlink_port_split: check devlink returned an element before dereferencing it

Message ID 20210628145424.69146-1-paolo.pisati@canonical.com
State New
Headers show
Series selftests: net: devlink_port_split: check devlink returned an element before dereferencing it | expand

Commit Message

Paolo Pisati June 28, 2021, 2:54 p.m. UTC
And thus avoid a Python stacktrace:

~/linux/tools/testing/selftests/net$ ./devlink_port_split.py
Traceback (most recent call last):
  File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
line 277, in <module> main()
  File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
line 242, in main
    dev = list(devs.keys())[0]
IndexError: list index out of range

Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
---
 tools/testing/selftests/net/devlink_port_split.py | 3 +++
 1 file changed, 3 insertions(+)

Comments

patchwork-bot+netdevbpf@kernel.org June 28, 2021, 11:20 p.m. UTC | #1
Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Mon, 28 Jun 2021 16:54:24 +0200 you wrote:
> And thus avoid a Python stacktrace:
> 
> ~/linux/tools/testing/selftests/net$ ./devlink_port_split.py
> Traceback (most recent call last):
>   File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
> line 277, in <module> main()
>   File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
> line 242, in main
>     dev = list(devs.keys())[0]
> IndexError: list index out of range
> 
> [...]

Here is the summary with links:
  - selftests: net: devlink_port_split: check devlink returned an element before dereferencing it
    https://git.kernel.org/netdev/net/c/a118ff661889

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/tools/testing/selftests/net/devlink_port_split.py b/tools/testing/selftests/net/devlink_port_split.py
index 834066d465fc..d162915311fd 100755
--- a/tools/testing/selftests/net/devlink_port_split.py
+++ b/tools/testing/selftests/net/devlink_port_split.py
@@ -239,6 +239,9 @@  def main(cmdline=None):
         assert stderr == ""
 
         devs = json.loads(stdout)['dev']
+        if len(devs.keys()) == 0:
+            print("no devlink device found")
+            sys.exit(1)
         dev = list(devs.keys())[0]
 
     cmd = "devlink dev show %s" % dev