media: cxusb: Don't use dynamic static allocation
authorMauro Carvalho Chehab <m.chehab@samsung.com>
Sat, 2 Nov 2013 10:18:09 +0000 (07:18 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 4 Dec 2013 18:57:31 +0000 (10:57 -0800)
commita691956557756a05d948ce37a23b7011b88a53b7
treeed6307cb5285b31bddec7d7b8c911d4bd427a597
parent7ce9cdbe07651a2417a00d0a37c8b9fefae12f4b
media: cxusb: Don't use dynamic static allocation

commit 64f7ef8afbf89f3c72c4d2472e4914ca198c0668 upstream.

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
drivers/media/usb/dvb-usb/cxusb.c:209:1: warning: 'cxusb_i2c_xfer' uses dynamic stack allocation [enabled by default]
drivers/media/usb/dvb-usb/cxusb.c:69:1: warning: 'cxusb_ctrl_msg' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/usb/dvb-usb/cxusb.c