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Kazuya Mizuguchi e2eb98070a usb: renesas_usbhs: gadget: fix NULL pointer dereference in ep_disable()

commit 11432050f0 upstream.

This patch fixes an issue that the NULL pointer dereference happens
when we uses g_audio driver. Since the g_audio driver will call
usb_ep_disable() in afunc_set_alt() before it calls usb_ep_enable(),
the uep->pipe of renesas usbhs driver will be NULL. So, this patch
adds a condition to avoid the oops.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Fixes: 2f98382dc (usb: renesas_usbhs: Add Renesas USBHS Gadget)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-01-16 06:59:51 -08:00

common.c

usb: renesas_usbhs: Add device tree support for R-Car H2 and M2

2014-09-05 10:59:27 -05:00

common.h

usb: renesas_usbhs: add R-Car Gen. 2 init and power control

2014-07-16 10:06:32 -05:00

fifo.c

usb: renesas_usbhs: fix the usb_pkt_pop()

2014-09-03 09:15:58 -05:00

fifo.h

usb: renesas: remove unused DMA_ADDR_INVALID