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staging: wilc1000: bug fix on memory free
author
Glen Lee
<glen.lee@atmel.com>
Mon, 21 Dec 2015 05:18:50 +0000
(14:18 +0900)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Mon, 21 Dec 2015 21:21:09 +0000
(13:21 -0800)
Set tx_buffer to NULL not to free again the memory that is already freed,
which could cause system crash when device is failed.
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/wilc1000/wilc_wlan.c
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diff --git
a/drivers/staging/wilc1000/wilc_wlan.c
b/drivers/staging/wilc1000/wilc_wlan.c
index
00f3464
..
83af51b
100644
(file)
--- a/
drivers/staging/wilc1000/wilc_wlan.c
+++ b/
drivers/staging/wilc1000/wilc_wlan.c
@@
-1374,6
+1374,7
@@
void wilc_wlan_cleanup(struct net_device *dev)
kfree(wilc->rx_buffer);
wilc->rx_buffer = NULL;
kfree(wilc->tx_buffer);
+ wilc->tx_buffer = NULL;
acquire_bus(wilc, ACQUIRE_AND_WAKEUP);