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pata_scc: propagate return value of scc_wait_after_reset 

scc_bus_softreset not necessarily should return zero.
Propagate the error code.

Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Arjun Sreedharan 2014-08-17 20:00:09 +05:30 committed by Tejun Heo
parent 0e5740770f
commit 4dc7c76cd5
1 changed files with 7 additions and 8 deletions
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15
drivers/ata/pata_scc.c
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@ -585,7 +585,7 @@ static int scc_wait_after_reset(struct ata_link *link, unsigned int devmask,
* Note: Original code is ata_bus_softreset().
*/
static unsigned int scc_bus_softreset(struct ata_port *ap, unsigned int devmask,
static int scc_bus_softreset(struct ata_port *ap, unsigned int devmask,
unsigned long deadline)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
@ -599,9 +599,7 @@ static unsigned int scc_bus_softreset(struct ata_port *ap, unsigned int devmask,
udelay(20);
out_be32(ioaddr->ctl_addr, ap->ctl);
scc_wait_after_reset(&ap->link, devmask, deadline);
return 0;
return scc_wait_after_reset(&ap->link, devmask, deadline);
}
/**
@ -618,7 +616,8 @@ static int scc_softreset(struct ata_link *link, unsigned int *classes,
{
struct ata_port *ap = link->ap;
unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;
unsigned int devmask = 0, err_mask;
unsigned int devmask = 0;
int rc;
u8 err;
DPRINTK("ENTER\n");
@ -634,9 +633,9 @@ static int scc_softreset(struct ata_link *link, unsigned int *classes,
/* issue bus reset */
DPRINTK("about to softreset, devmask=%x\n", devmask);
err_mask = scc_bus_softreset(ap, devmask, deadline);
if (err_mask) {
ata_port_err(ap, "SRST failed (err_mask=0x%x)\n", err_mask);
rc = scc_bus_softreset(ap, devmask, deadline);
if (rc) {
ata_port_err(ap, "SRST failed (err_mask=0x%x)\n", rc);
return -EIO;
}