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tty_audit: invert the condition in tty_audit_log()

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If we cannot obtain an audit buffer in tty_audit_log(), simply return
from the function. Apart this is mostly preferred in the kernel, it
allows to merge the split audit string while still keeping it readable.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230621101611.10580-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2023-06-21 12:16:08 +02:00 committed by Greg Kroah-Hartman
parent e1488513ab
commit 94f94810ef
1 changed files with 11 additions and 11 deletions
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22
drivers/tty/tty_audit.c
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@ -66,20 +66,20 @@ static void tty_audit_log(const char *description, dev_t dev,
uid_t uid = from_kuid(&init_user_ns, task_uid(current));
uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(current));
unsigned int sessionid = audit_get_sessionid(current);
char name[TASK_COMM_LEN];
ab = audit_log_start(audit_context(), GFP_KERNEL, AUDIT_TTY);
if (ab) {
char name[TASK_COMM_LEN];
if (!ab)
return;
audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u major=%d"
" minor=%d comm=", description, pid, uid,
loginuid, sessionid, MAJOR(dev), MINOR(dev));
get_task_comm(name, current);
audit_log_untrustedstring(ab, name);
audit_log_format(ab, " data=");
audit_log_n_hex(ab, data, size);
audit_log_end(ab);
}
audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u major=%d minor=%d comm=",
description, pid, uid, loginuid, sessionid,
MAJOR(dev), MINOR(dev));
get_task_comm(name, current);
audit_log_untrustedstring(ab, name);
audit_log_format(ab, " data=");
audit_log_n_hex(ab, data, size);
audit_log_end(ab);
}
/*