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authorLiang Yan <lyan@suse.com>2017-09-22 18:55:33 -0400
committerMichael Tokarev <mjt@tls.msk.ru>2017-09-26 09:11:22 +0300
commit98e8790326d732fc79f0c133d9658f4761ba9cb7 (patch)
tree8f17d68e310c1b72d3cad72b545b3698a77e1cef /chardev/baum.c
parenta295d244e575c4e44432e26bfd4634a8dcbf48d7 (diff)
chardev/baum: fix baum that releases brlapi twice
Error process of baum_chr_open needs to set brlapi null, so it won't get released twice in char_braille_finalize, which will cause "/usr/bin/qemu-system-x86_64: double free or corruption (!prev)" Signed-off-by: Liang Yan <lyan@suse.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'chardev/baum.c')
-rw-r--r--chardev/baum.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/chardev/baum.c b/chardev/baum.c
index 302dd9666c..67fd783a59 100644
--- a/chardev/baum.c
+++ b/chardev/baum.c
@@ -643,6 +643,7 @@ static void baum_chr_open(Chardev *chr,
error_setg(errp, "brlapi__openConnection: %s",
brlapi_strerror(brlapi_error_location()));
g_free(handle);
+ baum->brlapi = NULL;
return;
}
baum->deferred_init = 0;