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Commit a92098a1 authored by Fengguang Wu's avatar Fengguang Wu Committed by Greg Kroah-Hartman
Browse files

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: default avatarFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 221ca778

drivers/tty/serial/pch_uart.c

+4 −0
Original line number Diff line number Diff line
@@ -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;