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(parent: 073039c) | patch
selftests: txring_overwrite: fix incorrect test of mmap() return value
authorFrank de Brabander <debrabander@gmail.com>
Fri, 5 Jul 2019 11:43:14 +0000 (13:43 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 8 Jul 2019 22:39:38 +0000 (15:39 -0700)
commitb93d18293e8b7d9c7af6e86d7450cc40f257add6
treef354192e6a05bbb592e444771cfd159c823512a3tree | snapshot
parent073039ca31aab77c98252bb2ce4a17bfdba57740commit | diff
selftests: txring_overwrite: fix incorrect test of mmap() return value

If mmap() fails it returns MAP_FAILED, which is defined as ((void *) -1).
The current if-statement incorrectly tests if *ring is NULL.

Fixes: 468035f64f5a ("selftests/net: add txring_overwrite")
Signed-off-by: Frank de Brabander <debrabander@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tools/testing/selftests/net/txring_overwrite.c diff | blob | history
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