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Sebastian Siewior 4b1295b0df spi: fix the read path in spidev ... This got broken by the recent "fix rmmod $spi_driver while spidev-user is active". I tested the rmmod & write path but didn't check the read path. I am sorry. The read logic changed and spidev_sync_read() + spidev_sync_write() do not return zero on success anymore but the number of bytes that has been transfered over the bus. This patch changes the logic and copy_to_user() gets called again. The write path returns the number of bytes which are written to the underlying device what may be less than the requested size. This patch makes the same change to the read path or else we request a read of 20 bytes, get 10, don't call copy to user and report to the user that we read 10 bytes. [akpm@linux-foundation.org: remove test of known-to-be-zero local] Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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Kconfig	spi_mpc83xx: much improved driver	17 years ago
Makefile	spi: SuperH SPI using SCI	17 years ago
at25.c	spi: at25 driver is for EEPROM not FLASH	17 years ago
atmel_spi.c	atmel_spi: clean up baud rate divisor calculation	17 years ago
atmel_spi.h	[PATCH] SPI: atmel_spi driver	18 years ago
au1550_spi.c	spi: fix platform driver hotplug/coldplug	17 years ago
mpc52xx_psc_spi.c	mpc5200_psc_spi: typo fix in header block	17 years ago
omap2_mcspi.c	spi: fix platform driver hotplug/coldplug	17 years ago
omap_uwire.c	spi: replace remaining __FUNCTION__ occurrences	17 years ago
pxa2xx_spi.c	spi: pxa2xx_spi clock resume bugfix	17 years ago
spi.c	spi core: stop updating dev->power.power_state	17 years ago
spi_bfin5xx.c	spi_bfin5xx: use PIO for full duplex, not DMA	17 years ago
spi_bitbang.c	spi: replace remaining __FUNCTION__ occurrences	17 years ago
spi_butterfly.c	minor spi_butterfly cleanup	18 years ago
spi_imx.c	spi: spi_imx updates	17 years ago
spi_lm70llp.c	spi doesn't need class_device	18 years ago
spi_mpc83xx.c	spi_mpc83xx: much improved driver	17 years ago
spi_s3c24xx.c	spi_s3c24xx signedness fix	17 years ago
spi_s3c24xx_gpio.c	spi: fix platform driver hotplug/coldplug	17 years ago
spi_sh_sci.c	spi: fix platform driver hotplug/coldplug	17 years ago
spi_txx9.c	spi: fix platform driver hotplug/coldplug	17 years ago
spidev.c	spi: fix the read path in spidev	17 years ago
tle62x0.c	tle62x0 driver stops ignoring read errors	17 years ago
xilinx_spi.c	spi: replace remaining __FUNCTION__ occurrences	17 years ago