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spi: atmel: Make current_remaining_bytes to be int 

Don't use unsigned for current_remaining_bytes so we can check
current_remaining_bytes < 0 case.
Use int is enough for current_remaining_bytes.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Axel Lin 2014-03-27 09:26:38 +08:00 committed by Mark Brown
parent c9eaa447e7
commit 0c3b97487d
1 changed files with 3 additions and 1 deletions
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4
drivers/spi/spi-atmel.c
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@ -224,7 +224,7 @@ struct atmel_spi {
struct platform_device *pdev;
struct spi_transfer *current_transfer;
unsigned long current_remaining_bytes;
int current_remaining_bytes;
int done_status;
struct completion xfer_completion;
@ -1110,6 +1110,8 @@ static int atmel_spi_one_transfer(struct spi_master *master,
atmel_spi_next_xfer_pio(master, xfer);
} else {
as->current_remaining_bytes -= len;
if (as->current_remaining_bytes < 0)
as->current_remaining_bytes = 0;
}
} else {
atmel_spi_next_xfer_pio(master, xfer);