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| author | Zheyu Ma <zheyuma97@gmail.com> | 2021-10-22 09:12:26 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-02 17:38:11 +0100 |
| commit | e215f19d81071a82692eea9358505ed191b2463d (patch) | |
| tree | 97495cef55b418d77a5d5c5f8fe5fcccb86aa641 | |
| parent | 65695c85607034b23d54dccbe7a9bdbf38b94cbf (diff) | |
| download | linux-stable-e215f19d81071a82692eea9358505ed191b2463d.tar.gz linux-stable-e215f19d81071a82692eea9358505ed191b2463d.tar.bz2 linux-stable-e215f19d81071a82692eea9358505ed191b2463d.zip | |
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>
| -rw-r--r-- | drivers/ata/sata_mv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 601ea2e9fcf9..509f63891fb0 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -3909,8 +3909,8 @@ 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; |