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linux/drivers/misc/eeprom
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Dan Carpenter 71d46f1ff2 eeprom: idt_89hpesx: uninitialized data in idt_dbgfs_csr_write() 
The simple_write_to_buffer() function will return positive/success if it
is able to write a single byte anywhere within the buffer.  However that
potentially leaves a lot of the buffer uninitialized.

In this code it's better to return 0 if the offset is non-zero.  This
code is not written to support partial writes.  And then return -EFAULT
if the buffer is not completely initialized.

Fixes: cfad642538 ("eeprom: Add IDT 89HPESx EEPROM/CSR driver")
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Ysg1Pu/nzSMe3r1q@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2022-07-14 16:53:19 +02:00
..
at24.c eeprom: at24: Add support for 24c1025 EEPROM 2021-12-13 14:42:39 +01:00
at25.c eeprom: at25: Rework buggy read splitting 2022-06-27 16:21:05 +02:00
digsy_mtc_eeprom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ee1004.c eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX 2022-02-04 16:27:44 +01:00
eeprom.c misc: eeprom: use helper to get i2c_client from kobj 2020-09-21 11:45:43 +02:00
eeprom_93cx6.c misc: eeprom: eeprom_93cx6: Repair function arg descriptions 2020-06-29 18:45:52 +02:00
eeprom_93xx46.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
idt_89hpesx.c eeprom: idt_89hpesx: uninitialized data in idt_dbgfs_csr_write() 2022-07-14 16:53:19 +02:00
Kconfig nvmem: prepare basics for FRAM support 2021-06-11 12:23:10 +02:00
Makefile eeprom: New ee1004 driver for DDR4 memory 2018-10-15 20:51:46 +02:00
max6875.c misc: eeprom: max6875: convert to i2c_new_dummy_device 2019-07-25 10:06:54 +02:00