pmdomain: ti: Add a null pointer check to the omap_prm_domain_init

[ Upstream commit 5d7f58ee08434a33340f75ac7ac5071eea9673b3 ]

devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240118054257.200814-1-chentao@kylinos.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pmdomain/ti/omap_prm.c b/drivers/pmdomain/ti/omap_prm.c
index c2feae3a634caf44d1adb52fad5ae0026e775a12..b8ceb3c2b81c2510be466a1e5a75b68a1c8fa2af 100644 (file)
--- a/drivers/pmdomain/ti/omap_prm.c
+++ b/drivers/pmdomain/ti/omap_prm.c
@@ -695,6 +695,8 @@ static int omap_prm_domain_init(struct device *dev, struct omap_prm *prm)
        data = prm->data;
        name = devm_kasprintf(dev, GFP_KERNEL, "prm_%s",
                              data->name);
+       if (!name)
+               return -ENOMEM;
 
        prmd->dev = dev;
        prmd->prm = prm;