[PATCH] target: fix a missing check for match_int

[Kangjie Lu]

When match_int fails, "arg" is left uninitialized and may contain random
value, thus should not be used.
The fix checks if match_int fails, and if so, break.

Signed-off-by: Kangjie Lu <k...@umn.edu>
---
 drivers/target/target_core_rd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index a6e8106abd6f..3138123143e8 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -573,7 +573,8 @@ static ssize_t rd_set_configfs_dev_params(struct se_device 
*dev,
                token = match_token(ptr, tokens, args);
                switch (token) {
                case Opt_rd_pages:
-                       match_int(args, &arg);
+                       if (match_int(args, &arg))
+                               break;
                        rd_dev->rd_page_count = arg;
                        pr_debug("RAMDISK: Referencing Page"
                                " Count: %u\n", rd_dev->rd_page_count);
-- 
2.17.2 (Apple Git-113)