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| author | Gera Kazakov <gkazakov@msn.com> | 2013-09-10 02:47:06 +0400 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-09-11 07:23:33 +0400 |
| commit | f730f9158f6ee7b5c4d892af6b51a72194445ea4 (patch) | |
| tree | 628f2aba70cb4767f38968c94c9bedcaa7f8e817 /drivers/target | |
| parent | 38f7d6edbf91693bb679bb29901c8296e7838cd9 (diff) | |
| download | linux-f730f9158f6ee7b5c4d892af6b51a72194445ea4.tar.xz | |
target: Fix >= v3.9+ regression in PR APTPL + ALUA metadata write-out
This patch fixes a >= v3.9+ regression in __core_scsi3_write_aptpl_to_file()
+ core_alua_write_tpg_metadata() write-out, where a return value of -EIO was
incorrectly being returned upon success.
This bug was originally introduced in:
commit 0e9b10a90f1c30f25dd6f130130240745ab14010
Author: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat Feb 23 15:22:43 2013 -0500
target: writev() on single-element vector is pointless
However, given that the return of core_scsi3_update_and_write_aptpl()
was not used to determine if a command should be returned with non GOOD
status, this bug was not being triggered in PR logic until v3.11-rc1 by
commit:
commit 459f213ba162bd13e113d6f92a8fa6c780fd67ed
Author: Andy Grover <agrover@redhat.com>
Date: Thu May 16 10:41:02 2013 -0700
target: Allocate aptpl_buf inside update_and_write_aptpl()
So, go ahead and only return -EIO if kernel_write() returned a
negative value.
Reported-by: Gera Kazakov <gkazakov@msn.com>
Signed-off-by: Gera Kazakov <gkazakov@msn.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org # 3.9+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_alua.c | 2 | ||||
| -rw-r--r-- | drivers/target/target_core_pr.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index ea928c4d8854..3b4c450f0b06 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -733,7 +733,7 @@ static int core_alua_write_tpg_metadata( if (ret < 0) pr_err("Error writing ALUA metadata file: %s\n", path); fput(file); - return ret ? -EIO : 0; + return (ret < 0) ? -EIO : 0; } /* diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index bd78faf67c6b..adec5a82a41f 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -1949,7 +1949,7 @@ static int __core_scsi3_write_aptpl_to_file( pr_debug("Error writing APTPL metadata file: %s\n", path); fput(file); - return ret ? -EIO : 0; + return (ret < 0) ? -EIO : 0; } /* |