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Per definition, this function should return the number of bytes
consumed. Also take care of the unlikely case when buflen is not a
multiple of four; while transferring, the division cuts the remaining
bytes, so alter the return value accordingly.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
---
drivers/ata/pata_rb532_cf.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index b919012..95a0d66 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -75,7 +75,7 @@ static void rb532_pata_exec_command(struct ata_port *ap,
rb532_pata_finish_io(ap);
}
-static void rb532_pata_data_xfer(struct ata_device *adev,
+static unsigned int rb532_pata_data_xfer(struct ata_device *adev,
unsigned char *buf, unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->link->ap;
@@ -87,6 +87,7 @@ static void rb532_pata_data_xfer(struct ata_device *adev,
readsl(ioaddr, buf, buflen / sizeof(u32));
rb532_pata_finish_io(adev->link->ap);
+ return buflen - (buflen % sizeof(u32));
}
static void rb532_pata_freeze(struct ata_port *ap)
--
1.5.6.4
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