netdev - Re: [PATCH] atm: dereference of he_dev->rbps_virt in he_init

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Date:	Sat, 29 Aug 2009 20:59:04 +0200
From:	Roel Kluin <roel.kluin@...il.com>
To:	Roel Kluin <roel.kluin@...il.com>
CC:	Chas Williams <chas@....nrl.navy.mil>,
	linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] atm: dereference of he_dev->rbps_virt in he_init_group()

he_dev->rbps_virt or he_dev->rbpl_virt allocation may fail.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
There was another in the same function.

diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index 2de6406..8af1d3e 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -795,6 +795,8 @@ he_init_group(struct he_dev *he_dev, int group)
 	}
 	memset(he_dev->rbps_base, 0, CONFIG_RBPS_SIZE * sizeof(struct he_rbp));
 	he_dev->rbps_virt = kmalloc(CONFIG_RBPS_SIZE * sizeof(struct he_virt), GFP_KERNEL);
+	if (he_dev->rbps_virt == NULL)
+		return -ENOMEM;
 
 	for (i = 0; i < CONFIG_RBPS_SIZE; ++i) {
 		dma_addr_t dma_handle;
@@ -838,6 +840,8 @@ he_init_group(struct he_dev *he_dev, int group)
 	}
 	memset(he_dev->rbpl_base, 0, CONFIG_RBPL_SIZE * sizeof(struct he_rbp));
 	he_dev->rbpl_virt = kmalloc(CONFIG_RBPL_SIZE * sizeof(struct he_virt), GFP_KERNEL);
+	if (he_dev->rbpl_virt == NULL)
+		return -ENOMEM;
 
 	for (i = 0; i < CONFIG_RBPL_SIZE; ++i) {
 		dma_addr_t dma_handle;
--
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