Since kzalloc can be failed in memory pressure, its return value should be checked and handled.
Signed-off-by: Insu Yun <[email protected]> --- drivers/hsi/hsi.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index fe93712..bda4c26 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -85,12 +85,14 @@ struct hsi_client *hsi_new_client(struct hsi_port *port, cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (!cl) - return NULL; + goto err; cl->tx_cfg = info->tx_cfg; if (cl->tx_cfg.channels) { size = cl->tx_cfg.num_channels * sizeof(*cl->tx_cfg.channels); cl->tx_cfg.channels = kzalloc(size , GFP_KERNEL); + if (!cl->tx_cfg.channels) + goto err_tx; memcpy(cl->tx_cfg.channels, info->tx_cfg.channels, size); } @@ -98,6 +100,8 @@ struct hsi_client *hsi_new_client(struct hsi_port *port, if (cl->rx_cfg.channels) { size = cl->rx_cfg.num_channels * sizeof(*cl->rx_cfg.channels); cl->rx_cfg.channels = kzalloc(size , GFP_KERNEL); + if (!cl->rx_cfg.channels) + goto err_rx; memcpy(cl->rx_cfg.channels, info->rx_cfg.channels, size); } @@ -114,6 +118,12 @@ struct hsi_client *hsi_new_client(struct hsi_port *port, } return cl; +err_rx: + kfree(cl->tx_cfg.channels); +err_tx: + kfree(cl); +err: + return NULL; } EXPORT_SYMBOL_GPL(hsi_new_client); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
