scsi: acornscsi: Fix an error handling path in acornscsi_probe()

[ Upstream commit 42c76c9848e13dbe0538d7ae0147a269dfa859cb ]

'ret' is known to be 0 at this point.  Explicitly return -ENOMEM if one of
the 'ecardm_iomap()' calls fail.

Link: https://lore.kernel.org/r/20200530081622.577888-1-christophe.jaillet@wanadoo.fr
Fixes: e95a1b656a98 ("[ARM] rpc: acornscsi: update to new style ecard driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 421fe869a11ef0cbdb8130aa7b8ebdffbc775236..ef9d907f2df5ce069a3f73f13f22b7d92a4dc703 100644 (file)
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -2914,8 +2914,10 @@ static int acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 
        ashost->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
        ashost->fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
-       if (!ashost->base || !ashost->fast)
+       if (!ashost->base || !ashost->fast) {
+               ret = -ENOMEM;
                goto out_put;
+       }
 
        host->irq = ec->irq;
        ashost->host = host;