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authorMartin Svec <martin.svec@zoner.cz>2014-04-01 16:03:02 +0200
committerNicholas Bellinger <nab@linux-iscsi.org>2014-04-07 01:48:53 -0700
commita1e1774c6dfa3a524dd8df51ca95185fe5ef3247 (patch)
treefea7c7f70242f729320c22477f661be830bb0be8 /drivers/target
parent9d2e59f2a778328a41771fe9a0098dadbc4314ba (diff)
Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
When compiled with CONFIG_DEBUG_SG set, uninitialized SGL leads to BUG() in compare_and_write_callback(). Signed-off-by: Martin Svec <martin.svec@zoner.cz> Cc: <stable@vger.kernel.org> #3.12+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_sbc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 62daef5c0c8f..ec204f7ef126 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -425,13 +425,14 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd)
goto out;
}
- write_sg = kzalloc(sizeof(struct scatterlist) * cmd->t_data_nents,
+ write_sg = kmalloc(sizeof(struct scatterlist) * cmd->t_data_nents,
GFP_KERNEL);
if (!write_sg) {
pr_err("Unable to allocate compare_and_write sg\n");
ret = TCM_OUT_OF_RESOURCES;
goto out;
}
+ sg_init_table(write_sg, cmd->t_data_nents);
/*
* Setup verify and write data payloads from total NumberLBAs.
*/