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android_kernel_xiaomi_sm8450/drivers/mtd/chips
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Andreas Persson 779a0f4347 mtd: cfi_cmdset_0002: fix crash when erasing/writing AMD cards 
commit 2394e628738933aa014093d93093030f6232946d upstream.

Erasing an AMD linear flash card (AM29F016D) crashes after the first
sector has been erased. Likewise, writing to it crashes after two bytes
have been written. The reason is a missing check for a null pointer -
the cmdset_priv field is not set for this type of card.

Fixes: 4844ef8030 ("mtd: cfi_cmdset_0002: Add support for polling status register")
Signed-off-by: Andreas Persson <andreasp56@outlook.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/DB6P189MB05830B3530B8087476C5CFE4C1159@DB6P189MB0583.EURP189.PROD.OUTLOOK.COM
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-26 08:35:33 -04:00
..
cfi_cmdset_0001.c mtd: cfi_cmdset_0001: Support the absence of protection registers 2020-04-30 23:42:57 +05:30
cfi_cmdset_0002.c mtd: cfi_cmdset_0002: fix crash when erasing/writing AMD cards 2021-08-26 08:35:33 -04:00
cfi_cmdset_0020.c mtd: Convert fallthrough comments into statements 2020-03-30 10:14:54 +02:00
cfi_probe.c mtd: cfi: Add early fixup for S70GL02GS 2018-05-04 09:52:38 +02:00
cfi_util.c mtd: Convert fallthrough comments into statements 2020-03-30 10:14:54 +02:00
chipreg.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
fwh_lock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gen_probe.c mtd: chips: gen_probe: kill useless initializer in mtd_do_chip_probe() 2019-08-27 17:08:18 +05:30
jedec_probe.c MTD changes: 2018-04-06 12:15:41 -07:00
Kconfig mtd: Replace HTTP links with HTTPS ones 2020-08-02 22:17:19 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
map_absent.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
map_ram.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
map_rom.c mtd: remove the get_unmapped_area method 2017-11-13 21:39:18 +01:00