Yoshihiro Shimoda ffb9da6575 usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel() ... This patch fixes an issue that the following commit causes NULL pointer dereference in dma_release_channel(). "usb: renesas_usbhs: add support for requesting DT DMA" (commit id abd2dbf6bb) The usbhsf_dma_init_dt() should set fifo->{t,r}x_chan to NULL if dma_request_slave_channel_reason() returns IS_ERR value. Otherwise, usbhsf_dma_quit() will call dma_release_channel(), and then NULL pointer dereference happens. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Simon Horman <horms+renesas@verge.net.au> Reported-by: Simon Horman <horms@verge.net.au> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>		2015-01-30 10:35:37 -06:00
..
common.c	usb: renesas_usbhs: add OTG ID signal sensing	2015-01-12 15:36:28 -06:00
common.h	usb: renesas_usbhs: add OTG ID signal sensing	2015-01-12 15:36:28 -06:00
fifo.c	usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel()	2015-01-30 10:35:37 -06:00
fifo.h	usb: renesas_usbhs: expand USB-DMAC channels for R-Car Gen2	2014-11-12 09:11:31 -06:00
Kconfig	usb: renesas_usbhs: fix driver dependencies	2014-09-23 21:57:22 -07:00
Makefile	usb: renesas_usbhs: add R-Car Gen. 2 init and power control	2014-07-16 10:06:32 -05:00
mod_gadget.c	usb: renesas_usbhs: gadget: set value for common is_selfpowered	2015-01-29 10:32:51 -06:00
mod_host.c	usb: renesas_usbhs: mod_host: use HUB_CHAR_*	2015-01-27 09:34:57 -06:00
mod.c	usb: renesas_usbhs: protect mod->irq_{bemp,brdy}sts by spin lock	2014-09-03 09:15:57 -05:00
mod.h	renesas_usbhs: cleanup quoted includes	2012-06-05 10:15:25 +02:00
pipe.c	usb: renesas_usbhs: fix usbhs_pipe_clear() for DCP PIPE	2014-11-05 13:22:16 -06:00
pipe.h	usb: renesas_usbhs: fix the behavior of some usbhs_pkt_handle	2014-09-03 09:15:57 -05:00
rcar2.c	usb: renesas_usbhs: add support for generic PHY	2014-11-03 10:00:56 -06:00
rcar2.h	usb: renesas_usbhs: add R-Car Gen. 2 init and power control	2014-07-16 10:06:32 -05:00