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drivers/char/pcmcia/ipwireless/hardware.c fix resource leak

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Coverity CID: 2172 RESOURCE_LEAK

When pool_allocate() tries to enlarge a packet, if it can not allocate enough
memory, it returns NULL without first freeing the old packet.

This patch just frees the packet first.

Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Darren Jenkins 2008-07-12 13:47:49 -07:00 committed by Linus Torvalds
parent a26929fb48
commit 43f77e91ea
1 changed files with 3 additions and 1 deletions
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4
drivers/char/pcmcia/ipwireless/hardware.c
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@ -590,8 +590,10 @@ static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw,
packet = kmalloc(sizeof(struct ipw_rx_packet) +
old_packet->length + minimum_free_space,
GFP_ATOMIC);
if (!packet)
if (!packet) {
kfree(old_packet);
return NULL;
}
memcpy(packet, old_packet,
sizeof(struct ipw_rx_packet)
+ old_packet->length);