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| author |   Dan Carpenter <dan.carpenter@linaro.org> | 2025-09-02 09:36:08 +0300 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-09-03 16:58:44 -0700 |
| commit | a51160f8da850a65afbf165f5bbac7ffb388bf74 (patch) | |
| tree | 123b06887ffa92bb6bf928e58d1a461089f259cf | |
| parent | net: thunder_bgx: decrement cleanup index before use (diff) | |
| download | wireguard-linux-a51160f8da850a65afbf165f5bbac7ffb388bf74.tar.xz wireguard-linux-a51160f8da850a65afbf165f5bbac7ffb388bf74.zip | |
ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
The inetdev_init() function never returns NULL. Check for error
pointers instead.
Fixes: 22600596b675 ("ipv4: give an IPv4 dev to blackhole_netdev")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/aLaQWL9NguWmeM1i@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/ipv4/devinet.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c47d3828d4f6..942a887bf089 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -340,14 +340,13 @@ static void inetdev_destroy(struct in_device *in_dev) static int __init inet_blackhole_dev_init(void) { - int err = 0; + struct in_device *in_dev; rtnl_lock(); - if (!inetdev_init(blackhole_netdev)) - err = -ENOMEM; + in_dev = inetdev_init(blackhole_netdev); rtnl_unlock(); - return err; + return PTR_ERR_OR_ZERO(in_dev); } late_initcall(inet_blackhole_dev_init); |