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author | Sasha Levin <sasha.levin@oracle.com> | 2014-05-27 23:08:36 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 00:35:50 (GMT) |
commit | 8b9c012a425b23c1df52cc1ddfec8259035c6754 (patch) | |
tree | 932e1f6996c3482afdf033fec451a87dddc25694 /drivers | |
parent | 6371f2105a94121d3a061b04aaf0b8b392852bc5 (diff) | |
download | linux-8b9c012a425b23c1df52cc1ddfec8259035c6754.tar.xz |
Staging: speakup: don't die if accessing sysfs without synth
Setting a 'silent' parameter without a synth would crash the kernel.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/staging/speakup/synth.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index 0b3549b..172cf62 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -212,6 +212,9 @@ void synth_start(void) void spk_do_flush(void) { + if (!synth) + return; + speakup_info.flushing = 1; synth_buffer_clear(); if (synth->alive) { |