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| author | Phil Elwell <phil@raspberrypi.org> | 2017-09-24 15:20:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-18 15:09:45 +0200 |
| commit | c97d96b4e612c7dc1b37d7afc61b598a9a25994d (patch) | |
| tree | 0e6b16525e082f13bf06a31c9a4fb5e09e9655a0 /lib/irq_poll.c | |
| parent | aa444bd230f832d4e75cfac826255cfd66f545c3 (diff) | |
| download | linux-0-day-c97d96b4e612c7dc1b37d7afc61b598a9a25994d.tar.gz linux-0-day-c97d96b4e612c7dc1b37d7afc61b598a9a25994d.tar.xz | |
staging: bcm2835-audio: Fix memory corruption
The previous commit (0adbfd46) fixed a memory leak but also freed a
block in the success case, causing a stale pointer to be used with
potentially fatal results. Only free the vchi_instance block in the
case that vchi_connect fails; once connected, the instance is
retained for subsequent connections.
Simplifying the code by removing a bunch of gotos and returning errors
directly.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Fixes: 0adbfd4694c2 ("staging: bcm2835-audio: fix memory leak in bcm2835_audio_open_connection()")
Cc: stable <stable@vger.kernel.org> # 4.12+
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/irq_poll.c')
0 files changed, 0 insertions, 0 deletions