mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-12 21:57:43 +00:00
Code Issues Releases Wiki Activity
linux-stable/drivers/char
History
Rusty Russell 3a2c0ba5ad hwrng: use reference counts on each struct hwrng. 
current_rng holds one reference, and we bump it every time we want
to do a read from it.

This means we only hold the rng_mutex to grab or drop a reference,
so accessing /sys/devices/virtual/misc/hw_random/rng_current doesn't
block on read of /dev/hwrng.

Using a kref is overkill (we're always under the rng_mutex), but
a standard pattern.

This also solves the problem that the hwrng_fillfn thread was
accessing current_rng without a lock, which could change (eg. to NULL)
underneath it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-12-22 23:02:39 +11:00
..
agp agp/intel-gtt: Remove get/put_pages 2014-09-19 14:43:11 +02:00
hw_random hwrng: use reference counts on each struct hwrng. 2014-12-22 23:02:39 +11:00
ipmi Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
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 char: tpm: drop owner assignment from platform_drivers 2014-10-20 16:20:21 +02:00
xilinx_hwicap char: xilinx_hwicap: Remove .owner field for driver 2014-09-23 23:13:13 -07:00
xillybus char: xillybus: drop owner assignment from platform_drivers 2014-10-20 16:20:21 +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
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 ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
i8k.c i8k: Fix temperature bug handling in i8k_get_temp() 2014-11-26 19:29:36 -08:00
Kconfig xillybus: Move out of staging 2014-09-23 23:44:16 -07:00
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
mbcs.h
mem.c /dev/mem: Use more consistent data types 2014-11-10 15:59:21 +01:00
misc.c Revert "misc: always assign miscdevice to file->private_data in open()" 2014-11-14 16:49:49 -08:00
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
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
ps3flash.c ps3flash: switch to generic_file_llseek_size() 2013-06-29 12:57:33 +04:00
random.c This adds a memzero_explicit() call which is guaranteed not to be 2014-10-24 12:33:32 -07:00
raw.c Return short read or 0 at end of a raw device, not EIO 2014-10-31 06:33:26 -04:00
rtc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
scx200_gpio.c
snsc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.h
snsc_event.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
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: fix sparse warnings 2014-12-09 12:06:33 +02:00