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chardev/baum: fix baum that releases brlapi twice

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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>
This commit is contained in:
Liang Yan 2017-09-22 18:55:33 -04:00 committed by Michael Tokarev
parent a295d244e5
commit 98e8790326
1 changed files with 1 additions and 0 deletions
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chardev/baum.c
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@ -643,6 +643,7 @@ static void baum_chr_open(Chardev *chr,
error_setg(errp, "brlapi__openConnection: %s", error_setg(errp, "brlapi__openConnection: %s",
brlapi_strerror(brlapi_error_location())); brlapi_strerror(brlapi_error_location()));
g_free(handle); g_free(handle);
baum->brlapi = NULL;
return; return;
} }
baum->deferred_init = 0; baum->deferred_init = 0;