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| author |   Fengguang Wu <fengguang.wu@intel.com> | 2012-07-28 20:43:57 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-16 12:10:16 -0700 |
| commit | a92098a1cb7ec08c86d1b97d1831d8edaf26b1a2 (patch) | |
| tree | 550ccfd69cdbe92d70bbf8a84c8f9ff394f1d7a5 /drivers/tty/serial/pch_uart.c | |
| parent | serial: sc26xx: Fix compile breakage (diff) | |
| download | linux-dev-a92098a1cb7ec08c86d1b97d1831d8edaf26b1a2.tar.xz linux-dev-a92098a1cb7ec08c86d1b97d1831d8edaf26b1a2.zip | |
pch_uart: check kzalloc result in dma_handle_tx()
Reported by coccinelle:
drivers/tty/serial/pch_uart.c:979:1-14: alloc with no test, possible model on line 994
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
| -rw-r--r-- | drivers/tty/serial/pch_uart.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index 558ce8509a9a..4cd6c2381528 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -979,6 +979,10 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv) priv->tx_dma_use = 1; priv->sg_tx_p = kzalloc(sizeof(struct scatterlist)*num, GFP_ATOMIC); + if (!priv->sg_tx_p) { + dev_err(priv->port.dev, "%s:kzalloc Failed\n", __func__); + return 0; + } sg_init_table(priv->sg_tx_p, num); /* Initialize SG table */ sg = priv->sg_tx_p; |