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qemu_set_log_filename: filename argument may be NULL

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NULL is a valid log filename used to indicate we want to use stderr
but qemu_set_log_filename (which is called by bsd-user/main.c) was not
handling it correctly.

That also made redundant a couple of NULL checks in calling code which
have been removed.

Signed-off-by: Salvador Fandino <salvador@qindel.com>
Message-Id: <20200123193626.19956-1-salvador@qindel.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Salvador Fandino 2020-01-23 20:36:26 +01:00 • committed by Stefan Hajnoczi
parent d4aceb2eb7
commit e144a605a6
3 changed files with 18 additions and 19 deletions
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5
vl.c
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@ -3903,10 +3903,7 @@ int main(int argc, char **argv, char **envp)
/* Open the logfile at this point and set the log mask if necessary.
*/
if (log_file) {
qemu_set_log_filename(log_file, &error_fatal);
}
qemu_set_log_filename(log_file, &error_fatal);
if (log_mask) {
int mask;
mask = qemu_str_to_log_mask(log_mask);