OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mtd: spi-nor: sfdp: Fix wrong erase type bitmask for overlaid region 

commit abdf5a5ef9652bad4d58058bc22ddf23543ba3e1 upstream.

At the time spi_nor_region_check_overlay() is called, the erase types are
sorted in ascending order of erase size. The 'erase_type' should be masked
with 'BIT(erase[i].idx)' instead of 'BIT(i)'.

Fixes: b038e8e3be ("mtd: spi-nor: parse SFDP Sector Map Parameter Table")
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/fd90c40d5b626a1319a78fc2bcee79a8871d4d57.1601612872.git.Takahiro.Kuwano@infineon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takahiro Kuwano 2020-10-02 14:17:59 +09:00 committed by Greg Kroah-Hartman
parent 7852feb3ac
commit cc27d5f406
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/spi-nor/spi-nor.c
View File

@ -3700,7 +3700,7 @@ spi_nor_region_check_overlay(struct spi_nor_erase_region *region,
int i;
for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++) {
if (!(erase_type & BIT(i)))
if (!(erase[i].size && erase_type & BIT(erase[i].idx)))
continue;
if (region->size & erase[i].size_mask) {
spi_nor_region_mark_overlay(region);