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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-10-20 09:26:16 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-10-20 09:28:09 +0100
commit8a1a6272057e2ad90ab531a70330165888866e60 (patch)
treee528064ce8a4705e15326216ec143e3617721597 /drivers/mtd/devices
parent7d28e0d1e55442d198f7c35626d2c460ac04cab2 (diff)
downloadlinux-8a1a6272057e2ad90ab531a70330165888866e60.tar.gz
Revert "[MTD] m25p80.c code cleanup"
This reverts commit 75d0ee2202b5740e94e913d8a52f91c6557c4c81.

Although it seems ObviouslyCorrectâ„¢, 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>
Diffstat (limited to 'drivers/mtd/devices')
-rw-r--r--drivers/mtd/devices/m25p80.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 697a3a217837..76a76751da36 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -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);
 }