From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130419140557.213209813@goodmis.org> Date: Fri, 19 Apr 2013 10:04:07 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Frederic Weisbecker , Namhyung Kim , , Namhyung Kim Subject: [for-next][PATCH 5/7] tracing: Check return value of tracing_init_dentry() References: <20130419140402.730041313@goodmis.org> Content-Disposition: inline; filename=0005-tracing-Check-return-value-of-tracing_init_dentry.patch Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="00GvhwF7k39YY" Sender: linux-kernel-owner@vger.kernel.org List-ID: --00GvhwF7k39YY Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable From: Namhyung Kim Check return value and bail out if it's NULL. Link: http://lkml.kernel.org/r/1365553093-10180-2-git-send-email-namhyung@k= ernel.org Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: stable@vger.kernel.org Signed-off-by: Namhyung Kim Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 2 ++ kernel/trace/trace_stack.c | 2 ++ kernel/trace/trace_stat.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 07860b9..7297079 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5953,6 +5953,8 @@ static __init int tracer_init_debugfs(void) trace_access_lock_init(); =20 d_tracer =3D tracing_init_dentry(); + if (!d_tracer) + return 0; =20 init_tracer_debugfs(&global_trace, d_tracer); =20 diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index aab277b..8c3f37e 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -431,6 +431,8 @@ static __init int stack_trace_init(void) struct dentry *d_tracer; =20 d_tracer =3D tracing_init_dentry(); + if (!d_tracer) + return 0; =20 trace_create_file("stack_max_size", 0644, d_tracer, &max_stack_size, &stack_max_size_fops); diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c index 96cffb2..847f88a 100644 --- a/kernel/trace/trace_stat.c +++ b/kernel/trace/trace_stat.c @@ -307,6 +307,8 @@ static int tracing_stat_init(void) struct dentry *d_tracing; =20 d_tracing =3D tracing_init_dentry(); + if (!d_tracing) + return 0; =20 stat_dir =3D debugfs_create_dir("trace_stat", d_tracing); if (!stat_dir) --=20 1.7.10.4 --00GvhwF7k39YY Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJRcU9FAAoJEOdOSU1xswtMjFgIAKmoOqKz4KOdh1ar7J/y/C22 jp21RKdAFdU7Ea/UOZBonxTwoyDbgxsilSXbkAfmzmwhhoT6AOg2u3e7eaZIAplF CkW2g/fJnMWdOIBNmVtrUSSErAy96hQ9+n+P6TCB0xXKQcef3biRUX8pmKEHDCcz krNqZVpF7FQruz6vKGyMCwN3FbzKxrCN2gFXFoNSMcVmKZxaQtZyVY+BkdYWZmfq 6XNPDanoBLdtpEAhA4uS6s+JeNtpuu8pREriHmr6Q/ZntLZvFOZDPVmAfgZUBKDV C7a6nK6XaXFD5NlFnMp2Wl9USvqE7iMAGFSLkNzjwege/4KGlLN3AkrG0Knof5M= =pUe7 -----END PGP SIGNATURE----- --00GvhwF7k39YY--