ata: libata-sff: Fix compilation warning in ata_sff_lost_interrupt()

When returning false, ata_sff_altstatus() does not return any status
value, resulting in a compilation warning in ata_sff_lost_interrupt()
("uninitialized symbol 'status'"). Fix this by initializing the local
variable "status" to 0.

Fixes: 03c0e84f9c1e ("ata: libata-sff: refactor ata_sff_altstatus()")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index b3be7a8..b1666ad 100644 (file)
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1634,7 +1634,7 @@ EXPORT_SYMBOL_GPL(ata_sff_interrupt);
 
 void ata_sff_lost_interrupt(struct ata_port *ap)
 {
-       u8 status;
+       u8 status = 0;
        struct ata_queued_cmd *qc;
 
        /* Only one outstanding command per SFF channel */