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mtd: nand: pxa3xx: fix raw read when last_chunk_size == 0

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Commit 6293b0361d ("mtd: nand: pxa3xx: add raw read support") added the
local data_len variable in handle_data_pio() to track read size, but
forgot to update the condition of drain_fifo() call. That happens to
work when the layout last_chunk_size != 0. But when last_chunk_size ==
0, drain_fifo() is not called to read the last chunk, which leads to
"Wait timeout!!!" error. Fix this.

Fixes: 6293b0361d ("mtd: nand: pxa3xx: add raw read support")
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
This commit is contained in:
Baruch Siach 2020-04-05 19:19:31 +03:00 committed by Tom Rini
parent 79926e4f2f
commit 593f3976be
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/nand/raw/pxa3xx_nand.c
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@ -639,7 +639,7 @@ static void handle_data_pio(struct pxa3xx_nand_info *info)
DIV_ROUND_UP(info->step_spare_size, 4));
break;
case STATE_PIO_READING:
if (info->step_chunk_size)
if (data_len)
drain_fifo(info,
info->data_buff + info->data_buff_pos,
DIV_ROUND_UP(data_len, 4));