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[3.13.y-ckt,040/103] usb: musb: stuff leak of struct usb_hcd

Message ID 1424305990-17983-41-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa Feb. 19, 2015, 12:32 a.m. UTC 
3.13.11-ckt16 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

commit 68693b8ea4e284c46bff919ac62bd9ccdfdbb6ba upstream.

since the split of host+gadget mode in commit 74c2e9360058 ("usb: musb:
factor out hcd initalization") we leak the usb_hcd struct. We call now
musb_host_cleanup() which does basically usb_remove_hcd() and also sets
the hcd variable to NULL. Doing so makes the finall call to
musb_host_free() basically a nop and the usb_hcd remains around for ever
without anowner.
This patch drops that NULL assignment for that reason.

Fixes: 74c2e9360058 ("usb: musb: factor out hcd initalization")
Cc: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/usb/musb/musb_host.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 6582a20..df6ec9d 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2631,7 +2631,6 @@  void musb_host_cleanup(struct musb *musb)
 	if (musb->port_mode == MUSB_PORT_MODE_GADGET)
 		return;
 	usb_remove_hcd(musb->hcd);
-	musb->hcd = NULL;
 }
 
 void musb_host_free(struct musb *musb)