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Philipp Zabel 47b1be5c0f staging: imx/drm: request irq only after adding the crtc 
If the bootloader already enabled the display, the interrupt handler
will be called as soon as it is registered. If the CRTC is not already
added at this time, the call to imx_drm_handle_vblank will result in
a NULL pointer dereference.

The patch fixes a kernel panic [1], which has been on linux-next since
Jan 8 [2].

[1] http://thread.gmane.org/gmane.linux.ports.arm.kernel/218858
[2] http://thread.gmane.org/gmane.linux.ports.arm.kernel/208192

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-11 09:31:48 -07:00
..
android hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
asus_oled staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
bcm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
ccg Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
ced1401 staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
comedi staging: comedi: drivers: usbduxfast.c: fix for DMA buffers on stack 2013-03-11 09:30:04 -07:00
cptm1217 staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
crystalhd
csr Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
cxt1e1
dgrp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
echo
et131x Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
frontier staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
ft1000 Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
fwserial tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
gdm72xx staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
goldfish staging/goldfish: Add MTD dependency to KCONFIG 2013-02-07 17:16:07 -08:00
iio Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
imx-drm staging: imx/drm: request irq only after adding the crtc 2013-03-11 09:31:48 -07:00
keucr staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
line6 staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
media [media] staging: media: Remove unnecessary OOM messages 2013-02-13 17:32:46 -02:00
net
nvec arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
octeon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
olpc_dcon
omap-thermal Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
ozwpan staging/ozwpan: Mark read only parameters and structs as const 2013-02-15 15:14:30 -08:00
panel staging/panel: Mark local functions/structs static and add const if applicable (fix sparse warnings) 2013-02-15 10:20:14 -08:00
phison
quickstart
rtl8187se staging/rtl8187se: Mark functions as static to silence sparse 2013-02-15 10:28:37 -08:00
rtl8192e
rtl8192u staging/rtl8192u/ieee80211: Fix buffer overflow in ieee80211_softmac_wx.c 2013-02-14 09:26:23 -08:00
rtl8712
rts5139
sb105x tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
sbe-2t3e3 staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
sep staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
serqt_usb2
silicom
slicoss
sm7xxfb
speakup tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
ste_rmi4 staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
tidspbridge arm-soc: multiplatform support 2013-02-21 15:20:41 -08:00
usbip Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
vme Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
vt6655
vt6656 staging: vt6656: Fix oops on resume from suspend. 2013-03-11 09:30:04 -07:00
winbond
wlags49_h2 Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
wlags49_h25
wlan-ng Staging tree update for 3.9-rc1 2013-02-21 12:11:44 -08:00
xgifb staging/xgifb: Remove duplicated code in loops. 2013-02-15 15:12:40 -08:00
zcache mm: rename page struct field helpers 2013-02-23 17:50:18 -08:00
zram staging: Remove unnecessary OOM messages 2013-02-11 10:10:33 -08:00
zsmalloc mm: rename page struct field helpers 2013-02-23 17:50:18 -08:00
Kconfig Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-02-25 16:46:44 -08:00
Makefile Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-02-25 16:46:44 -08:00
staging.c