openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Revert "[MTD] m25p80.c code cleanup" 

This reverts commit 75d0ee2202.

Although it seems ObviouslyCorrect™, the spi_write() call uses DMA,
while spi_write_then_read() does not. Since our buffer is on the stack,
we must use the latter even though we don't actually want to read
anything back.

Pointed out by David Brownell <david-b@pacbell.net>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2008-10-20 09:26:16 +01:00
parent 7d28e0d1e5
commit 8a1a627205
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/devices/m25p80.c
View File

@ -134,7 +134,7 @@ static inline int write_enable(struct m25p *flash)
{
u8 code = OPCODE_WREN;
return spi_write(flash->spi, &code, 1);
return spi_write_then_read(flash->spi, &code, 1, NULL, 0);
}