android_kernel_motorola_sm6375/drivers/misc
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Filename Latest commit message Latest commit date
John Hubbard 3302d17ef6 misc: xilinx-sdfec: improve get_user_pages_fast() error handling
[ Upstream commit 57343d51613227373759f5b0f2eede257fd4b82e ]

This fixes the case of get_user_pages_fast() returning a -errno.
The result needs to be stored in a signed integer. And for safe
signed/unsigned comparisons, it's best to keep everything signed.
And get_user_pages_fast() also expects a signed value for number
of pages to pin.

Therefore, change most relevant variables, from u32 to int. Leave
"n" unsigned, for convenience in checking for overflow. And provide
a WARN_ON_ONCE() and early return, if overflow occurs.

Also, as long as we're tidying up: rename the page array from page,
to pages, in order to match the conventions used in most other call
sites.

Fixes: 20ec628e80 ("misc: xilinx_sdfec: Add ability to configure LDPC")
Cc: Derek Kiernan <derek.kiernan@xilinx.com>
Cc: Dragan Cvetic <dragan.cvetic@xilinx.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/r/20200527012628.1100649-2-jhubbard@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:35 +02:00
..
altera-stapl altera-stapl: altera_get_note: prevent write beyond end of 'key' 2020-03-25 08:25:47 +01:00
c2port
cardreader misc: rtsx: Add short delay after exit from ASPM 2020-05-27 17:46:46 +02:00
cb710
cxl
echo
eeprom
genwqe
habanalabs habanalabs: increase timeout during reset 2020-06-24 17:50:28 +02:00
ibmasm
lis3lv02d
lkdtm lkdtm/bugs: fix build error in lkdtm_UNSET_SMEP 2020-02-05 21:22:46 +00:00
mei mei: release me_cl object reference 2020-05-27 17:46:47 +02:00
mic
ocxl ocxl: Fix potential memory leak on context creation 2020-01-12 12:21:31 +01:00
sgi-gru
sgi-xp
ti-st
vmw_vmci
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
atmel-ssc.c
atmel_tclib.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c scsi: enclosure: Fix stale device oops with hot replug 2020-01-17 19:48:42 +01:00
fastrpc.c misc: fastrpc: fix potential fastrpc_invoke_ctx leak 2020-06-24 17:50:13 +02:00
hmc6352.c
hpilo.c
hpilo.h
ibmvmc.c
ibmvmc.h
ics932s401.c
isl29003.c
isl29020.c
Kconfig
kgdbts.c
lattice-ecp3-config.c
Makefile
pch_phub.c
pci_endpoint_test.c misc: pci_endpoint_test: Avoid using module parameter to determine irqtype 2020-04-08 09:08:41 +02:00
phantom.c
pti.c
pvpanic.c
qcom-coincell.c
sram-exec.c
sram.c
sram.h
tifm_7xx1.c
tifm_core.c
tsl2550.c
vexpress-syscfg.c
vmw_balloon.c
xilinx_sdfec.c misc: xilinx-sdfec: improve get_user_pages_fast() error handling 2020-06-24 17:50:35 +02:00