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thunderbolt: Fix to check the return value of kmemdup

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uuid in add_switch is allocted via kmemdup which can fail. The patch
logs the error and cleans up the allocated memory for switch.

Signed-off-by: Aditya Pakki <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
Signed-off-by: Mika Westerberg <[email protected]>
This commit is contained in:
Aditya Pakki 2019-03-25 16:25:22 -05:00 • committed by Mika Westerberg
commit fd21b79e54
1 changed files with 5 additions and 0 deletions
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5
drivers/thunderbolt/icm.c
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@ -473,6 +473,11 @@ static void add_switch(struct tb_switch *parent_sw, u64 route,
goto out;
sw->uuid = kmemdup(uuid, sizeof(*uuid), GFP_KERNEL);
if (!sw->uuid) {
tb_sw_warn(sw, "cannot allocate memory for switch\n");
tb_switch_put(sw);
goto out;
}
sw->connection_id = connection_id;
sw->connection_key = connection_key;
sw->link = link;