Add check for the return value of devm_kstrdup_const() in tegra_hsp_doorbell_create() to catch potential exception.

Fixes: a54d03ed01b4 ("mailbox: tegra-hsp: use devm_kstrdup_const()") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com --- drivers/mailbox/tegra-hsp.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c index c1981f091bd1..773a1cf6d93d 100644 --- a/drivers/mailbox/tegra-hsp.c +++ b/drivers/mailbox/tegra-hsp.c @@ -285,6 +285,8 @@ tegra_hsp_doorbell_create(struct tegra_hsp *hsp, const char *name, db->channel.hsp = hsp;

db->name = devm_kstrdup_const(hsp->dev, name, GFP_KERNEL); + if (!db->name) + return ERR_PTR(-ENOMEM); db->master = master; db->index = index;