Bartosz Golaszewski 00f0ea70d2 eeprom: at24: check if the chip is functional in probe() ... The at24 driver doesn't check if the chip is functional in its probe function. This leads to instantiating devices that are not physically present. For example the cape EEPROMs for BeagleBone Black are defined in the device tree at four addresses on i2c2, but normally only one of them is present. If the userspace doesn't know the location in advance, it will need to check if reading the nvmem attributes fails to determine which EEPROM is actually there. Try to read a single byte in probe() and bail-out with -ENODEV if the read fails. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>		2016-08-22 08:19:58 +02:00
..
altera-stapl	drivers/misc/altera-stapl/altera.c: remove extraneous KERN_INFO prefix	2015-06-25 17:00:38 -07:00
c2port	misc: c2port: use kobj_to_dev()	2016-02-07 23:01:45 -08:00
cb710
cxl	cxl: Set psl_fir_cntl to production environment value	2016-08-10 14:02:45 +10:00
echo
eeprom	eeprom: at24: check if the chip is functional in probe()	2016-08-22 08:19:58 +02:00
genwqe	GenWQE: Use pci_(request|release)_mem_regions	2016-06-21 17:11:09 -05:00
ibmasm	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
lis3lv02d	misc: apds990x, bh1770glc, lis3lv02d: use to_i2c_client	2016-02-07 23:01:45 -08:00
mei	Merge 4.7-rc4 into char-misc-next	2016-06-25 07:29:44 -07:00
mic	virtio/vhost: new features for 4.8	2016-08-06 09:20:13 -04:00
sgi-gru	x86/platform/UV: Remove Obsolete GRU MMR address translation	2016-05-04 08:48:51 +02:00
sgi-xp	mm: rename alloc_pages_exact_node() to __alloc_pages_node()	2015-09-08 15:35:28 -07:00
ti-st	drivers: misc: ti-st: Use int instead of fuzzy char for callback status	2016-07-17 19:59:26 +02:00
vmw_vmci	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
ad525x_dpot-i2c.c	misc: ad525x_dpot: Remove unnecessary MODULE_ALIAS()	2015-09-20 19:33:29 -07:00
ad525x_dpot-spi.c	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
ad525x_dpot.c	misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes	2016-03-01 16:55:13 -08:00
ad525x_dpot.h
apds990x.c	misc: apds990x, bh1770glc, lis3lv02d: use to_i2c_client	2016-02-07 23:01:45 -08:00
apds9802als.c
arm-charlcd.c	drivers/misc: make arm-charlcd.c explicitly non-modular	2016-02-07 23:01:45 -08:00
atmel_tclib.c	misc: atmel_tclib: get and use slow clock	2015-10-06 12:33:14 +02:00
atmel-ssc.c	ASoC: atmel_ssc_dai: distinguish the different SSC	2016-03-02 23:43:11 +09:00
bh1770glc.c	misc: apds990x, bh1770glc, lis3lv02d: use to_i2c_client	2016-02-07 23:01:45 -08:00
bh1780gli.c
bmp085-i2c.c	misc: Drop owner assignment from i2c_driver	2015-08-10 08:37:35 +02:00
bmp085-spi.c	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
bmp085.c
bmp085.h
cs5535-mfgpt.c
ds1682.c	misc: ds1682: clean up ds1682_eeprom_read() and ds1682_eeprom_write()	2015-08-05 13:53:39 -07:00
dummy-irq.c
enclosure.c
fsa9480.c
hmc6352.c
hpilo.c	misc: hpilo: Change e-mail address from hp.com to hpe.com	2015-10-04 12:42:33 +01:00
hpilo.h
ics932s401.c
ioc4.c
isl29003.c	misc: Drop owner assignment from i2c_driver	2015-08-10 08:37:35 +02:00
isl29020.c
Kconfig	Merge char-misc-next into staging-next	2016-02-22 14:46:24 -08:00
kgdbts.c	drivers/misc: make kgdbts.c slightly more explicitly non-modular	2015-09-20 19:32:35 -07:00
lattice-ecp3-config.c	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
lkdtm_bugs.c	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
lkdtm_core.c	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
lkdtm_heap.c	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
lkdtm_perms.c	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
lkdtm_rodata.c	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
lkdtm_usercopy.c	lkdtm: fix false positive warning from -Wmaybe-uninitialized	2016-08-01 14:27:23 -07:00
lkdtm.h	lkdtm: silence warnings about function declarations	2016-07-15 16:14:45 -07:00
Makefile	lkdtm: Fix targets for objcopy usage	2016-08-01 14:27:24 -07:00
panel.c	misc: panel, convert struct to bitmap	2016-02-11 19:24:23 -08:00
pch_phub.c	pch_phub: return -ENODATA if ROM can't be mapped	2016-03-05 12:19:39 -08:00
phantom.c
pti.c
qcom-coincell.c	ARM: qcom: silence an uninitialized variable warning	2016-05-01 14:20:04 -07:00
spear13xx_pcie_gadget.c	spear13xx_pcie_gadget: use per-attribute show and store methods	2015-10-13 22:17:40 -07:00
sram.c	misc: sram: fix check of devm_ioremap*() return value	2016-04-30 14:15:56 -07:00
ti_dac7512.c	spi: Drop owner assignment from spi_drivers	2015-10-28 10:30:17 +09:00
tifm_7xx1.c
tifm_core.c
tsl2550.c	misc: Drop owner assignment from i2c_driver	2015-08-10 08:37:35 +02:00
vexpress-syscfg.c
vmw_balloon.c	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00