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	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	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	char: remove use of __devinitconst	2012-11-21 12:55:19 -08:00
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	drivers/char/mmtimer.c: Remove useless kfree	2012-09-26 13:20:40 -07:00
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	Merge branch 'late/fixes' into fixes	2012-10-07 07:22:32 -07:00
pc8736x_gpio.c	pc8736x_gpio: use platform_device_unregister in pc8736x_gpio_cleanup()	2012-10-24 15:52:29 -07:00
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	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_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: fix sparse warnings	2014-12-09 12:06:33 +02:00