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target: Make target_do_xcopy failures return INVALID_PARAMETER_LIST

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This patch changes target_do_xcopy() to properly return
TCM_INVALID_PARAMETER_LIST instead of TCM_INVALID_CDB_FIELD
for failures related to the EXTENDED_COPY parameter list parsing.

Also, move struct xcopy_op allocation ahead of kmapping to
handle the special TCM_OUT_OF_RESOURCES case.

Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2013-10-07 15:20:07 -07:00
parent 9e20ae3397
commit 934a138e97
1 changed files with 9 additions and 8 deletions
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17
drivers/target/target_core_xcopy.c
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@ -896,9 +896,17 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
if (!xop) {
pr_err("Unable to allocate xcopy_op\n");
return TCM_OUT_OF_RESOURCES;
}
xop->xop_se_cmd = se_cmd;
p = transport_kmap_data_sg(se_cmd);
if (!p) {
pr_err("transport_kmap_data_sg() failed in target_do_xcopy\n");
kfree(xop);
return TCM_OUT_OF_RESOURCES;
}
@ -920,13 +928,6 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
goto out;
}
xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
if (!xop) {
pr_err("Unable to allocate xcopy_op\n");
goto out;
}
xop->xop_se_cmd = se_cmd;
pr_debug("Processing XCOPY with list_id: 0x%02x list_id_usage: 0x%02x"
" tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage,
tdll, sdll, inline_dl);
@ -957,7 +958,7 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
if (p)
transport_kunmap_data_sg(se_cmd);
kfree(xop);
return TCM_INVALID_CDB_FIELD;
return TCM_INVALID_PARAMETER_LIST;
}
static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd)