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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-08-07 10:36:12 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-08-07 10:36:12 +0400 |
| commit | 5e2aa2ed08e2e280121dc7cf5609c87d464f12ef (patch) | |
| tree | ca7d7b1480285e3b617fecc5b41f0ce150a82c32 /drivers/spi/spi-atmel.c | |
| parent | f62d14a8072b9756db36ba394e2b267470a40240 (diff) | |
| parent | fc8104bc5a3f6f49d79f45f2706f79f77a9fb2ae (diff) | |
| download | linux-5e2aa2ed08e2e280121dc7cf5609c87d464f12ef.tar.xz | |
Merge branch 'next' into for-linus
Prepare first round of input updates for 3.17.
Diffstat (limited to 'drivers/spi/spi-atmel.c')
| -rw-r--r-- | drivers/spi/spi-atmel.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 079e6b1b0cdb..92a6f0d93233 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -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; @@ -874,8 +874,9 @@ atmel_spi_pump_pio_data(struct atmel_spi *as, struct spi_transfer *xfer) spi_readl(as, RDR); } if (xfer->bits_per_word > 8) { - as->current_remaining_bytes -= 2; - if (as->current_remaining_bytes < 0) + if (as->current_remaining_bytes > 2) + as->current_remaining_bytes -= 2; + else as->current_remaining_bytes = 0; } else { as->current_remaining_bytes--; @@ -1110,6 +1111,8 @@ 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); |