linux/drivers/char
Jorge Ramirez-Ortiz c0f6eebedd hwrng: optee - fix wait use case
The current code waits for data to be available before attempting a
second read. However the second read would not be executed as the
while loop will exit.

This fix does not wait if all data has been read (skips the call to
msleep(0)) and reads a second time if partial data was retrieved on
the first read.

Worth noticing that since msleep(0) schedules a one jiffy timeout is
better to skip such a call.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-08-21 14:45:28 +10:00
..
agp Merge drm/drm-next into drm-intel-next-queued 2020-06-25 18:05:03 +03:00
hw_random hwrng: optee - fix wait use case 2020-08-21 14:45:28 +10:00
ipmi ipmi/watchdog: add missing newlines when printing parameters by sysfs 2020-07-21 06:29:15 -05:00
mwave char/mwave: remove redundant initialization of variable bRC 2020-07-10 14:50:51 +02:00
pcmcia cm4000_cs.c cmm_ioctl(): get rid of pointless access_ok() 2020-05-29 11:04:56 -04:00
tpm ARM: SoC driver updates for v5.9 2020-08-03 19:30:59 -07:00
xilinx_hwicap
xillybus char: xillybus: use devm_platform_ioremap_resource() to simplify code 2019-11-05 18:29:21 +01:00
adi.c
apm-emulation.c
applicom.c misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
applicom.h
bsr.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c char: hpet: Fix out-of-bounds read bug 2020-01-30 06:58:33 +01:00
Kconfig char: Replace HTTP links with HTTPS ones 2020-07-23 09:44:15 +02:00
lp.c lp: fix sparc64 LPSETTIMEOUT ioctl 2019-11-13 19:08:22 +08:00
Makefile rtc/alpha: remove legacy rtc driver 2020-03-19 07:41:02 +01:00
mem.c /dev/mem: Add missing memory barriers for devmem_inode 2020-07-23 09:47:13 +02:00
misc.c
mspec.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
nsc_gpio.c
nvram.c nvram: drop useless access_ok() 2020-05-29 11:03:30 -04:00
nwbutton.c
nwbutton.h misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
nwflash.c misc: move FLASH_MINOR into miscdevice.h and fix conflicts 2020-03-18 12:27:04 +01:00
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c ppdev: Distribute switch variables for initialization 2020-02-23 20:28:12 +01:00
ps3flash.c
random.c random32: update the net random state on interrupt and activity 2020-07-29 10:35:37 -07:00
raw.c char: raw: do not leak CONFIG_MAX_RAW_DEVS to userspace 2020-07-10 14:50:51 +02:00
scx200_gpio.c
sonypi.c
tb0219.c
tlclk.c drivers: char: tlclk.c: Avoid data race between init and interrupt handler 2020-04-23 16:55:24 +02:00
toshiba.c misc: cleanup minor number definitions in c file into miscdevice.h 2020-03-18 12:27:03 +01:00
ttyprintk.c ttyprintk: remove redundant initialization of variable ret 2020-07-10 14:50:51 +02:00
uv_mmtimer.c
virtio_console.c Merge v5.8-rc6 into char-misc-next 2020-07-20 09:43:40 +02:00