usb: chipidea: host: Only disable the vbus regulator if it is not NULL
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 <stable@vger.kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
52d0dc7597
commit
cc5c9eb67f
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@ -88,7 +88,8 @@ static int host_start(struct ci_hdrc *ci)
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return ret;
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disable_reg:
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regulator_disable(ci->platdata->reg_vbus);
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if (ci->platdata->reg_vbus)
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regulator_disable(ci->platdata->reg_vbus);
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put_hcd:
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usb_put_hcd(hcd);
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