From: Fabio Estevam <fabio.este...@freescale.com>
Commit 40ed51a4b (usb: chipidea: host: add vbus regulator
control) introduced a smatch complaint because regulator_disable() is called
without checking whether ci->platdata->reg_vbus is not NULL.
Fix this by adding the check.
This patch is needed for 3.12 stable
Cc: stable <sta...@vger.kernel.org>
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Fabio Estevam <fabio.este...@freescale.com>
Signed-off-by: Peter Chen <peter.c...@freescale.com>
---
drivers/usb/chipidea/host.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 59e6020..526cd77 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -88,7 +88,8 @@ static int host_start(struct ci_hdrc *ci)
return ret;
disable_reg:
- regulator_disable(ci->platdata->reg_vbus);
+ if (ci->platdata->reg_vbus)
+ regulator_disable(ci->platdata->reg_vbus);
put_hcd:
usb_put_hcd(hcd);
--
1.7.8
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