3.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: =?UTF-8?q?J=C3=B6rn=20Engel?= <[email protected]> commit 47f1b8803e1e358ebbf4f82bfdb98971c912a2c3 upstream. transport_kmap_data_sg can return NULL. I never saw this trigger, but returning -ENOMEM seems better than a crash. Also removes a pointless case while at it. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/target/target_core_device.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -658,7 +658,9 @@ int target_report_luns(struct se_task *s unsigned char *buf; u32 cdb_offset = 0, lun_count = 0, offset = 8, i; - buf = (unsigned char *) transport_kmap_data_sg(se_cmd); + buf = transport_kmap_data_sg(se_cmd); + if (!buf) + return -ENOMEM; /* * If no struct se_session pointer is present, this struct se_cmd is -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
