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linux/drivers/spi
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Juan Gutierrez 8dd4a0163e spi: use sg_next for walking through the allocated scatterlist table 
A null dereference or Oops exception might occurs when reading at once the
whole content of an spi-nor of big enough size that requires an scatterlist
table that does not fit into one single page.

The spi_map_buf function is ignoring the chained sg case by dereferenceing
the scatterlist elements in an array fashion. This wrongly assumes that
the allocation of the scatterlist elements are contiguous. This is true as
long as the scatterlist table fits within a PAGE_SIZE. However, for
allocation where the scatter table is bigger than that, the pages allocated
by sg_alloc might not be contigous.

The sg table can be properly walked by sg_next instead of using an array.

Signed-off-by: Juan Gutierrez <juan.gutierrez@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-22 16:27:31 +00:00
..
Kconfig
Merge remote-tracking branches 'spi/topic/rspi', 'spi/topic/sc18is602', 'spi/topic/sh-msiof', 'spi/topic/spidev-test' and 'spi/topic/st-ssc4' into spi-next
2016-09-30 09:14:18 -07:00
Makefile
Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/pic32-sqi', 'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-next
2016-09-30 09:14:14 -07:00
spi-adi-v3.c
…
spi-altera.c
…
spi-ath79.c
spi: ath79: simplify iomem resource mapping
2015-09-30 20:33:29 +01:00
spi-atmel.c
spi: atmel: fix gpio chip-select in case of non-DT platform
2016-01-28 23:25:54 +01:00
spi-au1550.c
spi: au1550: Simplify au1550_spi_setupxfer()
2015-09-16 20:54:54 +01:00
spi-axi-spi-engine.c
spi: Drop duplicate code to set master->dev.parent
2016-04-26 11:56:09 +01:00
spi-bcm53xx.c
spi: bcm53xx: add spi_flash_read callback for MMIO-based reads
2016-04-18 13:53:46 +01:00
spi-bcm53xx.h
…
spi-bcm63xx-hsspi.c
spi/bcm63xx-hsspi: add support for dual spi read/write
2015-08-25 17:33:49 +01:00
spi-bcm63xx.c
Merge remote-tracking branches 'spi/topic/bcm63xx', 'spi/topic/butterfly', 'spi/topic/cadence' and 'spi/topic/davinci' into spi-next
2016-01-11 16:48:30 +00:00
spi-bcm2835.c
spi: bcm2835: Remove unnecessary workaround to call gpio_set_value
2016-02-15 20:43:39 +00:00
spi-bcm2835aux.c
Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next
2016-03-11 14:28:25 +07:00
spi-bcm-qspi.c
spi: iproc-qspi: Add Broadcom iProc SoCs support
2016-09-24 20:03:25 +01:00
spi-bcm-qspi.h
spi: iproc-qspi: Add Broadcom iProc SoCs support
2016-09-24 20:03:25 +01:00
spi-bfin5xx.c
spi: spi-bfin5xx: Remove deprecated create_singlethread_workqueue
2016-07-03 14:14:31 +02:00
spi-bfin-sport.c
spi: spi-bfin-sport: Remove deprecated create_singlethread_workqueue
2016-07-03 14:24:31 +02:00
spi-bitbang-txrx.h
spi: Fix regression in spi-bitbang-txrx.h
2015-07-29 15:01:07 +01:00
spi-bitbang.c
spi: bitbang: switch to the generic implementation of transfer_one_message
2015-10-05 14:55:56 +01:00
spi-brcmstb-qspi.c
spi: brcmstb-qspi: Broadcom settop platform driver
2016-09-14 18:03:32 +01:00
spi-butterfly.c
spi: butterfly: use new parport device model
2015-12-02 19:38:16 +00:00
spi-cadence.c
spi: cadence: mark pm functions __maybe_unused
2016-04-18 10:58:49 +01:00
spi-cavium-octeon.c
spi: octeon: Split driver into Octeon specific and common parts
2016-07-24 21:54:29 +01:00
spi-cavium-thunderx.c
spi: spi-cavium-thunderx: Add missing clk_disable_unprepare()
2016-08-24 12:37:43 +01:00
spi-cavium.c
spi: octeon: Split driver into Octeon specific and common parts
2016-07-24 21:54:29 +01:00
spi-cavium.h
spi: octeon: Add ThunderX driver
2016-08-19 16:24:39 +01:00
spi-clps711x.c
spi: clps711x: Driver refactor
2016-07-07 11:44:43 +02:00
spi-coldfire-qspi.c
spi: spi-coldfire-qspi: enable RuntimePM before registering to the core
2015-10-12 17:02:08 +01:00
spi-davinci.c
spi: davinci: Use dma_request_chan() for requesting DMA channel
2016-04-29 18:15:15 +01:00
spi-dln2.c
spi: Drop duplicate code to set master->dev.parent
2016-04-26 11:56:09 +01:00
spi-dw-mid.c
spi: dw-mid: switch to new dmaengine_terminate_* API
2016-02-05 17:41:49 +00:00
spi-dw-mmio.c
spi: dw-mmio: remove message which is handled by core
2016-02-05 17:41:49 +00:00
spi-dw-pci.c
spi: dw-pci: Spelling s/paltforms/platforms/g
2016-05-11 18:26:19 +01:00
spi-dw.c
spi: dw: round up result of calculation for clock divider
2016-09-12 19:59:08 +01:00
spi-dw.h
spi: dw: fix multiple slaves with different baudrates
2016-09-06 11:53:50 +01:00
spi-efm32.c
…
spi-ep93xx.c
spi: spi-ep93xx: Fix the PTR_ERR() argument
2016-05-24 16:54:50 +01:00
spi-falcon.c
Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next
2015-02-08 11:16:46 +08:00
spi-fsl-cpm.c
QE: Move QE from arch/powerpc to drivers/soc
2015-12-22 17:12:56 -06:00
spi-fsl-cpm.h
…
spi-fsl-dspi.c
spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function
2016-08-22 17:45:22 +01:00
spi-fsl-espi.c
spi: fsl-espi: improve return value handling in fsl_espi_probe
2016-09-24 19:48:32 +01:00
spi-fsl-lib.c
spi: fsl-(e)spi: simplify cleanup code
2015-08-28 18:15:18 +01:00
spi-fsl-lib.h
spi: fsl-espi: align register access with other drivers
2016-09-14 18:24:47 +01:00
spi-fsl-spi.c
spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource
2015-08-30 12:14:36 +01:00
spi-fsl-spi.h
…
spi-gpio.c
Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next
2015-02-08 11:16:46 +08:00
spi-img-spfi.c
spi: img-spfi: Remove spi_master_put in img_spfi_remove()
2016-07-27 19:00:16 +01:00
spi-imx.c
spi: imx: fix error return code in spi_imx_probe()
2016-09-28 09:50:55 -07:00
spi-iproc-qspi.c
spi: iproc-qspi: Add Broadcom iProc SoCs support
2016-09-24 20:03:25 +01:00
spi-jcore.c
spi: jcore: remove unnecessary platform_set_drvdata()
2016-08-09 10:40:05 +01:00
spi-lm70llp.c
spi: lm70llp: remove printk
2015-12-07 20:09:09 +00:00
spi-loopback-test.c
spi: loopback-test: mark rx_ranges_cmp() static
2016-09-01 20:54:54 +01:00
spi-lp8841-rtc.c
spi: lp-8841: return correct error code from probe
2016-02-26 11:06:38 +09:00
spi-meson-spifc.c
spi: meson: Add GXBB compatible
2016-09-12 20:11:39 +01:00
spi-mpc52xx-psc.c
spi: spi-mpc52xx-psc: Remove deprecated create_singlethread_workqueue
2016-07-03 14:23:25 +02:00
spi-mpc52xx.c
…
spi-mpc512x-psc.c
spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally
2015-09-17 12:33:31 +01:00
spi-mt65xx.c
spi: mediatek: remove spi_master_put in mtk_spi_remove()
2016-07-27 19:00:16 +01:00
spi-mxs.c
spi: mxs: cleanup wait_for_completion return handling
2015-02-05 18:04:57 +00:00
spi-nuc900.c
…
spi-oc-tiny.c
spi: oc-tiny: Use of_property_read_u32 instead of open-coding it
2015-09-16 19:16:01 +01:00
spi-omap2-mcspi.c
spi: omap2-mcspi: Use the SPI framework to handle DMA mapping
2016-07-08 10:48:02 +02:00
spi-omap-100k.c
spi: omap-100k: Rely on validations done by spi core
2015-09-17 12:34:20 +01:00
spi-omap-uwire.c
spi: omap-uwire: Remove needless bits_per_word and speed_hz tests
2015-09-17 12:33:58 +01:00
spi-orion.c
spi: orion: Fix return value check in orion_spi_probe()
2016-06-13 16:36:40 +01:00
spi-pic32-sqi.c
spi: pic32-sqi: use list_move_tail and list_move
2016-08-08 11:56:40 +01:00
spi-pic32.c
spi: pic32: fixup wait_for_completion_timeout return handling
2016-07-24 21:49:16 +01:00
spi-pl022.c
spi: pl022: Remove obsolete struct pl022 members from kerneldoc
2016-02-17 12:08:55 +00:00
spi-ppc4xx.c
spi: bitbang: Replace spinlock by mutex
2015-09-17 12:13:40 +01:00
spi-pxa2xx-dma.c
spi: pxa2xx: Remove pointer to chip data from driver data
2016-09-12 20:01:27 +01:00
spi-pxa2xx-pci.c
spi: pxa2xx-pci: fix ACPI-based enumeration of SPI devices
2016-08-24 12:20:03 +01:00
spi-pxa2xx.c
spi: pxa2xx: Fix build error because of missing header
2016-09-29 11:00:41 -07:00
spi-pxa2xx.h
spi: pxa2xx: Add support for GPIO descriptor chip selects
2016-09-26 09:11:14 -07:00
spi-qup.c
Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/pic32-sqi', 'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-next
2016-09-30 09:14:14 -07:00
spi-rb4xx.c
spi: rb4xx: Fix checking return value of devm_ioremap_resource()
2015-05-01 17:35:54 +01:00
spi-rockchip.c
Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/rockchip', 'spi/topic/s3c64xx', 'spi/topic/sh' and 'spi/topic/sh-msiof' into spi-next
2016-07-24 22:08:25 +01:00
spi-rspi.c
spi: rspi: Increase accuracy of bit rate for RZ
2016-08-08 11:56:46 +01:00
spi-s3c24xx-fiq.h
…
spi-s3c24xx-fiq.S
…
spi-s3c24xx.c
spi: bitbang: Replace spinlock by mutex
2015-09-17 12:13:40 +01:00
spi-s3c64xx.c
spi: s3c64xx: restore removed comments
2016-07-14 17:28:32 +01:00
spi-sc18is602.c
spi: sc18is602: Change gpiod_set_value to gpiod_set_value_cansleep
2016-09-29 11:01:36 -07:00
spi-sh-hspi.c
…
spi-sh-msiof.c
spi: sh-msiof: Avoid invalid clock generator parameters
2016-08-05 11:46:07 +01:00
spi-sh-sci.c
…
spi-sh.c
spi: spi-sh: Remove deprecated create_singlethread_workqueue
2016-07-11 19:32:38 +01:00
spi-sirf.c
spi: sirf: add the reset for USP-based SPI
2015-05-26 11:39:16 +01:00
spi-st-ssc4.c
spi: st-ssc4: Fix misuse of devm_gpio_request/devm_gpio_free APIs
2016-09-14 16:05:35 +01:00
spi-sun4i.c
Merge remote-tracking branches 'spi/topic/spidev', 'spi/topic/sunxi', 'spi/topic/ti-qspi', 'spi/topic/topcliff-pch' and 'spi/topic/txx9' into spi-next
2016-07-24 22:08:27 +01:00
spi-sun6i.c
Merge remote-tracking branches 'spi/topic/spidev', 'spi/topic/sunxi', 'spi/topic/ti-qspi', 'spi/topic/topcliff-pch' and 'spi/topic/txx9' into spi-next
2016-07-24 22:08:27 +01:00
spi-tegra20-sflash.c
…
spi-tegra20-slink.c
…
spi-tegra114.c
…
spi-test.h
spi: loopback: added additional non-power of 2 transfer lengthes
2015-12-13 20:10:15 +00:00
spi-ti-qspi.c
spi: spi-ti-qspi: Add DMA support for QSPI mmap read
2016-08-17 12:24:28 +01:00
spi-tle62x0.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
spi-topcliff-pch.c
spi: spi-topcliff-pch: Remove deprecated create_singlethread_workqueue
2016-07-11 19:32:26 +01:00
spi-txx9.c
spi: spi-txx9: Add missing clock (un)prepare calls for CCF
2016-08-18 19:10:39 +01:00
spi-xcomm.c
spi: xcomm: Export I2C module alias information
2015-07-31 18:14:57 +01:00
spi-xilinx.c
spi: xilinx: Return IRQ_NONE if no interrupts were detected
2016-07-15 11:45:00 +01:00
spi-xlp.c
spi: xlp: Add ACPI support for Vulcan SPI controller
2016-08-09 15:25:43 +01:00
spi-xtensa-xtfpga.c
spi: xtensa-xtfpga: fix register endianness
2015-09-22 09:30:10 -07:00
spi-zynqmp-gqspi.c
spi: zynqmp: disable clocks in error paths
2016-05-04 14:21:03 +01:00
spi.c
spi: use sg_next for walking through the allocated scatterlist table
2016-11-22 16:27:31 +00:00
spidev.c
spi: spidev: Add ACPI probing support
2016-07-04 16:28:52 +02:00