[PATCH] libata: make ata_bus_probe() return negative errno on failure

ata_bus_probe() uses unsigned int rc to receive negative errno and
returns the converted unsigned int value.  Convert temporary variables
to int and make ata_bus_probe() return negative errno on failure.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 8def7a5e436a..c7ba523fb1eb 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1349,13 +1349,13 @@ err_out_nosup:
  *      PCI/etc. bus probe sem.
  *
  *      RETURNS:
- *      Zero on success, non-zero on error.
+ *      Zero on success, negative errno otherwise.
  */
 
 static int ata_bus_probe(struct ata_port *ap)
 {
         unsigned int classes[ATA_MAX_DEVICES];
-        unsigned int i, rc, found = 0;
+        int i, rc, found = 0;
 
         ata_port_probe(ap);
 
@@ -1421,7 +1421,7 @@ static int ata_bus_probe(struct ata_port *ap)
 
 err_out_disable:
         ap->ops->port_disable(ap);
-        return -1;
+        return -ENODEV;
 }
 
 /**