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linux/drivers/char
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Eli Billauer 127af88285 char: xillybus: Don't return -EFAULT on user-triggered flush 
The API allows the application to flush a host-to-FPGA stream by calling
write() with the data count set to zero. Before this patch, copy_from_user()
was called with a non-zero byte count, which possibly made it attempt to read
from unmapped user memory. Such attempts caused the driver to return -EFAULT
instead of 0, even though the desired operation went through fine.

This patch ensures the driver returns 0 on a successful flush.

Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-03 16:15:30 +02:00
..
agp Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-02-05 10:32:44 +10:00
hw_random hwrng: Avoid manual device_create_file() calls 2015-03-25 11:44:53 +01:00
ipmi char: constify of_device_id array 2015-03-16 21:10:28 +01:00
mwave drivers/char: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
pcmcia char: synclink: Remove WARN_ON for bad port count 2014-07-10 16:07:46 -07:00
tpm tpm: fix call order in tpm-chip.c 2015-03-06 22:35:49 +01:00
xilinx_hwicap char: xilinx_hwicap: Remove .owner field for driver 2014-09-23 23:13:13 -07:00
xillybus char: xillybus: Don't return -EFAULT on user-triggered flush 2015-04-03 16:15:30 +02:00
apm-emulation.c apm-emulation: add hibernation APM events to support suspend2disk 2014-01-07 13:50:28 +01:00
applicom.c applicom: dereferencing NULL on error path 2014-05-27 17:43:12 -07:00
applicom.h
bfin-otp.c
bsr.c bsr: avoid format string leaking into device name 2014-07-09 16:59:15 -07:00
ds1302.c
ds1620.c ds1620: single_open() leak 2013-05-05 00:11:29 -04:00
dsp56k.c drivers/char/dsp56k.c: drop check for negativity of unsigned parameter 2014-07-17 18:38:37 -07:00
dtlk.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
efirtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
generic_nvram.c
genrtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
hangcheck-timer.c hangcheck-timer: cleanup casting in hangcheck_init() 2014-11-07 11:24:01 -08:00
hpet.c ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
i8k.c i8k: Remove use of seq_printf return value 2015-03-25 15:12:28 +01:00
Kconfig drivers: char: mem: Make /dev/mem an optional device 2015-01-12 05:04:11 -08:00
lp.c char: Int overflow in lp_do_ioctl(). 2013-12-18 16:39:54 -08:00
Makefile xillybus: Move out of staging 2014-09-23 23:44:16 -07:00
mbcs.c char: remove use of __devinitconst 2012-11-21 12:55:19 -08:00
mbcs.h
mem.c Char / Misc patches for 3.20-rc1 2015-02-15 10:48:44 -08:00
misc.c misc: pass miscdevice through file's private_data 2015-04-03 16:15:30 +02:00
mmtimer.c
msm_smd_pkt.c treewide: Fix typos in printk 2013-12-19 15:10:49 +01:00
mspec.c char: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT 2013-05-21 10:07:54 -07:00
nsc_gpio.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
nvram.c
nwbutton.c char: nwbutton: open-code interruptible_sleep_on 2014-01-08 15:29:52 -08:00
nwbutton.h
nwflash.c
pc8736x_gpio.c
ppdev.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
ps3flash.c ps3flash: switch to generic_file_llseek_size() 2013-06-29 12:57:33 +04:00
random.c random: Fix fast_mix() function 2015-02-09 12:28:42 -08:00
raw.c fs: remove mapping->backing_dev_info 2015-01-20 14:03:05 -07:00
rtc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
scx200_gpio.c
snsc_event.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.h
sonypi.c char: drop owner assignment from platform_drivers 2014-10-20 16:20:19 +02:00
tb0219.c char: drop owner assignment from platform_drivers 2014-10-20 16:20:19 +02:00
tile-srom.c char: tile-srom: Add real platform bus parent 2014-10-02 10:19:34 -04:00
tlclk.c tlclk: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
toshiba.c
ttyprintk.c ttyprintk: Allow built as a module 2014-04-16 14:21:06 -07:00
uv_mmtimer.c
virtio_console.c virtio_console: Use bool function return values of true/false not 1/0 2015-04-03 16:15:30 +02:00