This is a note to let you know that I've just added the patch titled
Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
target-sbc-initialize-compare_and_write-write_sg-scatterlist.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a1e1774c6dfa3a524dd8df51ca95185fe5ef3247 Mon Sep 17 00:00:00 2001
From: Martin Svec <martin.svec@xxxxxxxx>
Date: Tue, 1 Apr 2014 16:03:02 +0200
Subject: Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
From: Martin Svec <martin.svec@xxxxxxxx>
commit a1e1774c6dfa3a524dd8df51ca95185fe5ef3247 upstream.
When compiled with CONFIG_DEBUG_SG set, uninitialized SGL leads
to BUG() in compare_and_write_callback().
Signed-off-by: Martin Svec <martin.svec@xxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/target_core_sbc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 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_
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.
*/
Patches currently in stable-queue which might be from martin.svec@xxxxxxxx are
queue-3.14/target-sbc-initialize-compare_and_write-write_sg-scatterlist.patch
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