diff options
| author | Michael Thalmeier <michael.thalmeier@hale.at> | 2017-05-18 16:14:14 +0200 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2017-05-23 02:36:46 +0200 |
| commit | 0340ff83cd4475261e7474033a381bc125b45244 (patch) | |
| tree | 6c0d26616cc466fabceb134e43ebad58060be699 /drivers | |
| parent | usb: chipidea: udc: fix NULL pointer dereference if udc_start failed (diff) | |
| download | linux-0340ff83cd4475261e7474033a381bc125b45244.tar.xz linux-0340ff83cd4475261e7474033a381bc125b45244.zip | |
usb: chipidea: debug: check before accessing ci_role
ci_role BUGs when the role is >= CI_ROLE_END.
Cc: stable@vger.kernel.org #v3.10+
Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/chipidea/debug.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index 6d23eede4d8c..1c31e8a08810 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -294,7 +294,8 @@ static int ci_role_show(struct seq_file *s, void *data) { struct ci_hdrc *ci = s->private; - seq_printf(s, "%s\n", ci_role(ci)->name); + if (ci->role != CI_ROLE_END) + seq_printf(s, "%s\n", ci_role(ci)->name); return 0; } |