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linux/drivers
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Samuel CUELLA 16b71fdf97 i810: fix kernel crash fix when struct fb_var_screeninfo is supplied 
Prevent the kernel from being crashed by a divide-by-zero operation when
supplied an incorrectly filled 'struct fb_var_screeninfo' from userland.

Previously i810_main.c:1005 (i810_check_params) was using the global
'yres' symbol previously defined at i810_main.c:145 as a module parameter
value holder (i810_main.c:2174).  If i810fb is compiled-in or if this
param doesn't get a default value, this direct usage leads to a
divide-by-zero at i810_main.c:1005 (i810_check_params).  The patch simply
replace the 'yres' global, perhaps undefined symbol usage by a given
parameter structure lookup.

This problem occurs with directfb, mplayer -vo fbdev, SDL library.
It was also reported ( but non solved ) at:

	http://mail.directfb.org/pipermail/directfb-dev/2008-March/004050.html

Signed-off-by: Samuel CUELLA <samuel.cuella@supinfo.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10 15:55:12 -07:00
..
accessibility
acpi Merge branches 'release', 'bugzilla-12011', 'bugzilla-12632', 'misc' and 'suspend' into release 2009-02-21 22:01:43 -05:00
amba [ARM] Fix realview build 2009-01-08 16:29:41 +00:00
ata libata: Don't trust current capacity values in identify words 57-58 2009-03-05 07:26:10 -05:00
atm ATM: misplaced parentheses? 2009-02-18 17:41:38 -08:00
auxdisplay
base mm: get_nid_for_pfn() returns int 2009-03-10 15:55:10 -07:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-03-09 09:15:40 -07:00
bluetooth
cdrom
char intel-agp: fix a panic with 1M of shared memory, no GTT entries 2009-03-10 15:55:11 -07:00
clocksource
connector
cpufreq Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod." 2009-03-09 15:07:33 -04:00
cpuidle
crypto crypto: ixp4xx - Fix qmgr_request_queue build failure 2009-03-04 08:01:22 +08:00
dca I/OAT: update driver version and copyright dates 2009-03-04 16:04:40 -07:00
dio m68k: dio - Kill resource_size_t format warnings 2009-01-12 20:56:42 +01:00
dma Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-03-08 10:23:05 -07:00
edac powerpc: More printing warning fixes for the l64 to ll64 conversion 2009-01-28 17:15:52 +11:00
eisa
firewire firewire: core: Remove card from list of cards when enable fails 2009-02-01 11:17:24 +01:00
firmware Bernhard has moved 2009-02-18 15:37:56 -08:00
gpio gpiolib: fix request related issue 2009-01-29 18:04:43 -08:00
gpu drm: fix double lock typo 2009-03-04 21:49:14 +10:00
hid HID: move tmff and zpff devices from ignore_list to blacklist 2009-02-17 13:25:01 +01:00
hwmon lm85: add VRM10 support for adt7468 chip 2009-03-10 15:55:10 -07:00
i2c Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-03-03 14:12:41 -08:00
ide ide: add at91_ide driver 2009-03-05 16:10:58 +01:00
idle
ieee1394 Make ieee1394_init a fs-initcall 2009-02-26 10:32:31 -08:00
infiniband Merge branches 'ehca', 'ipoib' and 'mlx4' into for-linus 2009-01-16 15:05:54 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-03-02 15:43:03 -08:00
isdn ISDN: fix sc/shmem printk format warning 2009-02-20 00:54:44 -08:00
leds lis3lv02d: merge with leds hp disk 2009-01-15 16:39:40 -08:00
lguest lguest: fix for CONFIG_SPARSE_IRQ=y 2009-03-09 10:06:29 +10:30
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
mca
md md: fix deadlock when stopping arrays 2009-03-04 00:57:25 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-03-02 15:43:03 -08:00
memstick memstick: annotate endianness of attribute structs 2009-01-09 16:54:41 -08:00
message [SCSI] mpt: fix disable lsi sas to use msi as default 2009-02-22 08:51:07 -06:00
mfd mfd: Fix sm501_register_gpio section mismatch 2009-02-17 09:48:05 +01:00
misc hpilo: new pci device 2009-02-27 16:26:22 -08:00
mmc mmc: fix data timeout for SEND_EXT_CSD 2009-03-08 14:46:04 +01:00
mtd mtd: physmap: fix NULL pointer dereference in error path 2009-03-10 15:55:11 -07:00
net p54: fix race condition in memory management 2009-03-06 15:54:32 -05:00
nubus
of drivers/of: Add the of_find_i2c_device_by_node function. 2009-01-09 15:49:06 -07:00
oprofile oprofile: fix uninitialized use of struct op_entry 2009-01-17 17:26:39 +01:00
parisc Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
parport m68k: atari - Rename "mfp" to "st_mfp" 2009-02-22 09:23:02 -08:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-02-26 14:43:42 -08:00
pcmcia powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
platform fujitsu-laptop: Use RFKILL support bitmask from firmware 2009-02-21 21:59:55 -05:00
pnp Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
power pcf50633_charger: Fix typo 2009-02-02 19:53:02 +03:00
ps3 powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/ps3 2009-01-16 16:15:14 +11:00
rapidio
regulator leds: Fix bounds checking of wm8350->pmic.led 2009-01-30 21:50:49 +00:00
rtc rtc: t reaches -1, tested 0 2009-02-11 14:25:36 -08:00
s390 [S390] fix "mem=" handling in case of standby memory 2009-02-19 15:19:19 +01:00
sbus
scsi [SCSI] fix ABORTED_COMMAND looping forever problem 2009-02-21 20:29:38 -06:00
serial Merge branch 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-02-27 16:40:00 -08:00
sh
sn
spi spi-gpio: sanitize MISO bitvalue 2009-02-18 15:37:56 -08:00
ssb
staging Staging: w35und: fix usb_control_msg() error handling in wb35_probe() 2009-02-27 12:56:24 -08:00
tc
telephony
thermal
uio
usb USB: musb: fix srp sysfs entry deletion 2009-02-27 14:40:51 -08:00
uwb uwb: lock rc->rsvs_lock with spin_lock_bh() 2009-01-23 12:57:20 +00:00
video i810: fix kernel crash fix when struct fb_var_screeninfo is supplied 2009-03-10 15:55:12 -07:00
virtio virtio-pci: do not oops on config change if driver not loaded 2009-02-02 19:17:56 -08:00
w1 w1: add missing Kconfig/Makefile entries for DS2431 slave driver 2009-02-27 16:26:21 -08:00
watchdog [WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclared 2009-03-05 19:25:05 +00:00
xen PM: Split up sysdev_[suspend|resume] from device_power_[down|up] 2009-02-22 10:33:44 -08:00
zorro m68k: zorro - Use %pR to print resources 2009-01-12 20:56:43 +01:00
Kconfig
Makefile Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00