UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mtd: spi-nor: core: Add erase size check for erase command initialization 

Even if erase type is same as previous region, erase size can be different
if the previous region is overlaid region. Since 'region->size' is assigned
to 'cmd->size' for overlaid region, comparing 'erase->size' and 'cmd->size'
can detect previous overlaid region.

Fixes: 5390a8df76 ("mtd: spi-nor: add support to non-uniform SFDP SPI NOR flash memories")
Cc: stable@vger.kernel.org
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
[ta: Add Fixes tag and Cc to stable]
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/13d47e8d8991b8a7fd8cc7b9e2a5319c56df35cc.1601612872.git.Takahiro.Kuwano@infineon.com
This commit is contained in:
Takahiro Kuwano 2020-10-02 14:18:02 +09:00 committed by Tudor Ambarus
parent 969b276718
commit 58fa22f68f
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/mtd/spi-nor/core.c
View File

@ -1516,6 +1516,7 @@ static int spi_nor_init_erase_cmd_list(struct spi_nor *nor,
goto destroy_erase_cmd_list;
if (prev_erase != erase ||
erase->size != cmd->size ||
region->offset & SNOR_OVERLAID_REGION) {
cmd = spi_nor_init_erase_cmd(region, erase);
if (IS_ERR(cmd)) {