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ata: sata_mv: Fix the error handling of mv_chip_id() 

commit a0023bb9dd9bc439d44604eeec62426a990054cd upstream.

mv_init_host() propagates the value returned by mv_chip_id() which in turn
gets propagated by mv_pci_init_one() and hits local_pci_probe().

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Since this is a bug rather than a recoverable runtime error we should
use dev_alert() instead of dev_err().

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zheyu Ma 2021-10-22 09:12:26 +00:00 committed by Greg Kroah-Hartman
parent 6d0b30784f
commit 853f22623d
1 changed files with 2 additions and 2 deletions
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4
drivers/ata/sata_mv.c
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@ -3892,8 +3892,8 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
break;
default:
dev_err(host->dev, "BUG: invalid board index %u\n", board_idx);
return 1;
dev_alert(host->dev, "BUG: invalid board index %u\n", board_idx);
return -EINVAL;
}
hpriv->hp_flags = hp_flags;