From bc972b6b52e2ddd93b7532cd2213d9c2be5d6340 Mon Sep 17 00:00:00 2001 From: Wenwen Wang Date: Thu, 8 Aug 2019 00:50:58 -0500 Subject: [PATCH] ALSA: firewire: fix a memory leak bug commit 1be3c1fae6c1e1f5bb982b255d2034034454527a upstream. In iso_packets_buffer_init(), 'b->packets' is allocated through kmalloc_array(). Then, the aligned packet size is checked. If it is larger than PAGE_SIZE, -EINVAL will be returned to indicate the error. However, the allocated 'b->packets' is not deallocated on this path, leading to a memory leak. To fix the above issue, free 'b->packets' before returning the error code. Fixes: 31ef9134eb52 ("ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver") Signed-off-by: Wenwen Wang Reviewed-by: Takashi Sakamoto Cc: # v2.6.39+ Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/firewire/packets-buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/firewire/packets-buffer.c b/sound/firewire/packets-buffer.c index 1ebf00c..715cd99 100644 --- a/sound/firewire/packets-buffer.c +++ b/sound/firewire/packets-buffer.c @@ -37,7 +37,7 @@ int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit, packets_per_page = PAGE_SIZE / packet_size; if (WARN_ON(!packets_per_page)) { err = -EINVAL; - goto error; + goto err_packets; } pages = DIV_ROUND_UP(count, packets_per_page); -- 2.7.4