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| author |   Arnd Bergmann <arnd@arndb.de> | 2017-07-26 09:55:33 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-07-26 09:32:44 -0700 |
| commit | 9877e1058aaf166b578ed44c8e0fc78fe6e67152 (patch) | |
| tree | e05433e6e3bbc6a8d744bdc1cf14125d917ac38b /drivers/net/hamradio | |
| parent | virtio-net: mark PM functions as __maybe_unused (diff) | |
| download | linux-dev-9877e1058aaf166b578ed44c8e0fc78fe6e67152.tar.xz linux-dev-9877e1058aaf166b578ed44c8e0fc78fe6e67152.zip | |
hamradio: dmascc: avoid -Wformat-overflow warning
gcc warns that the device name might overflow:
drivers/net/hamradio/dmascc.c: In function 'dmascc_init':
drivers/net/hamradio/dmascc.c:584:22: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=]
sprintf(dev->name, "dmascc%i", 2 * n + i);
drivers/net/hamradio/dmascc.c:584:3: note: 'sprintf' output between 8 and 17 bytes into a destination of size 16
sprintf(dev->name, "dmascc%i", 2 * n + i);
>From the static data in this file, I can tell that the index is
strictly limited to 16, so it won't overflow. This simply changes
the sprintf() to snprintf(), which is a good idea in general,
and shuts up this warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hamradio')
| -rw-r--r-- | drivers/net/hamradio/dmascc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c index dec6b76bc0fb..cde41200f40a 100644 --- a/drivers/net/hamradio/dmascc.c +++ b/drivers/net/hamradio/dmascc.c @@ -581,7 +581,7 @@ static int __init setup_adapter(int card_base, int type, int n) priv->param.dma = -1; INIT_WORK(&priv->rx_work, rx_bh); dev->ml_priv = priv; - sprintf(dev->name, "dmascc%i", 2 * n + i); + snprintf(dev->name, sizeof(dev->name), "dmascc%i", 2 * n + i); dev->base_addr = card_base; dev->irq = irq; dev->netdev_ops = &scc_netdev_ops; |