libatasmart/libatasmart-0.19-wd-fix.patch

27 lines
1.1 KiB
Diff

Author: Phillip Susi <psusi@ubuntu.com>
Subject: fix an incorrect IO error reading SMART status
Description: The read SMART status command's return status
was testing for a success/failure value that included 8
bits that are "N/A" according to the standard, and required
that they be zeros. At least some drives do not fill them
with zeros, so correct this by masking off the undefined
bits.
Index: b/atasmart.c
===================================================================
--- a/atasmart.c
+++ b/atasmart.c
@@ -925,10 +925,10 @@
/* SAT/USB bridges truncate packets, so we only check for 4F,
* not for 2C on those */
if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == htons(0x00C2U)) &&
- cmd[4] == htons(0x4F00U))
+ (cmd[4] & htons(0xFF00U)) == htons(0x4F00U))
*good = TRUE;
else if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == htons(0x002CU)) &&
- cmd[4] == htons(0xF400U))
+ (cmd[4] & htons(0xFF00U)) == htons(0xF400U))
*good = FALSE;
else {
errno = EIO;