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-rw-r--r--drivers/ata/libata-sff.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 0a8567c..0b299b0 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1358,6 +1358,16 @@ fsm_start:
qc->err_mask |= AC_ERR_HSM;
}
+ /* There are oddball controllers with
+ * status register stuck at 0x7f and
+ * lbal/m/h at zero which makes it
+ * pass all other presence detection
+ * mechanisms we have. Set NODEV_HINT
+ * for it. Kernel bz#7241.
+ */
+ if (status == 0x7f)
+ qc->err_mask |= AC_ERR_NODEV_HINT;
+
/* ata_pio_sectors() might change the
* state to HSM_ST_LAST. so, the state
* is changed after ata_pio_sectors().
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