Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8575b814097af648dad284bd3087875a11b13d18
Commit: 8575b814097af648dad284bd3087875a11b13d18
Parent: 54936f8b099325992f0f212a5e366fd5257c6c9c
Author: Tejun Heo <[EMAIL PROTECTED]>
AuthorDate: Fri May 11 14:46:51 2007 +0200
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Fri May 11 18:09:18 2007 -0400
libata: give devices one last chance even if recovery failed with -EINVAL
After certain errors, some devices report complete garbage on
IDENTIFY. This can cause ata_dev_read_id() to fail with -EINVAL
resulting in immediate disabling of the device. Give the device one
last chance after -EINVAL to allow recovery from such situations. As
-EINVAL is triggered very rarely, this shouldn't cause any noticeable
affect on more common error paths.
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
Cc: Harald Dunkel <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/ata/libata-eh.c | 6 +-----
1 files changed, 1 insertions(+), 5 deletions(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ee9bb53..5309c31 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2003,14 +2003,10 @@ static int ata_eh_recover(struct ata_port *ap,
ata_prereset_fn_t prereset,
ehc->tries[dev->devno]--;
switch (rc) {
- case -EINVAL:
- /* eeek, something went very wrong, give up */
- ehc->tries[dev->devno] = 0;
- break;
-
case -ENODEV:
/* device missing or wrong IDENTIFY data, schedule probing */
ehc->i.probe_mask |= (1 << dev->devno);
+ case -EINVAL:
/* give it just one more chance */
ehc->tries[dev->devno] = min(ehc->tries[dev->devno], 1);
case -EIO:
-
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