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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-08-20 18:35:44 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-08-27 14:18:14 -0500 |
| commit | 9047428894660f8f46305917e519ab62f7395cac (patch) | |
| tree | 1661f315da9f809463f606cde44086745619287f /drivers/usb/musb | |
| parent | 51ef74f6400c731827454d010b35b122103fe9f9 (diff) | |
| download | linux-stable-9047428894660f8f46305917e519ab62f7395cac.tar.gz linux-stable-9047428894660f8f46305917e519ab62f7395cac.tar.bz2 linux-stable-9047428894660f8f46305917e519ab62f7395cac.zip | |
usb: musb: only remove host/udc if it has been added
musb_shutdown() removes always USB host and device.
musb_init_controller() adds host and device depending on port_mode. If
port mode is set to HOST then the removal of UDC leads only to:
|(NULL device *): gadget not registered.
and nothing else happens. If port mode is set to DEVICE and we remove
the host then we oops in usb_remove_hcd().
This patch ensures that we only remove host in OTG/host mode and device
only in OTG/device mode to avoid any trouble.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 2 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index b7b8b2bc4ee9..9a08679d204d 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1812,6 +1812,8 @@ err: void musb_gadget_cleanup(struct musb *musb) { + if (musb->port_mode == MUSB_PORT_MODE_HOST) + return; usb_del_gadget_udc(&musb->g); } diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index a9695f5a92fb..9a2b8c85f19a 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2628,6 +2628,8 @@ int musb_host_alloc(struct musb *musb) void musb_host_cleanup(struct musb *musb) { + if (musb->port_mode == MUSB_PORT_MODE_GADGET) + return; usb_remove_hcd(musb->hcd); musb->hcd = NULL; } |