6.12-stable review patch. If anyone has any objections, please let me know.
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From: Haoxiang Li haoxiang_li2024@163.com
commit e31e3f6c0ce473f7ce1e70d54ac8e3ed190509f8 upstream.
Add check for the return value of devm_kstrdup() in loongson2_guts_probe() to catch potential exception.
Fixes: b82621ac8450 ("soc: loongson: add GUTS driver for loongson-2 platforms") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com Link: https://lore.kernel.org/r/20250220081714.2676828-1-haoxiang_li2024@163.com Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soc/loongson/loongson2_guts.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/soc/loongson/loongson2_guts.c +++ b/drivers/soc/loongson/loongson2_guts.c @@ -114,8 +114,11 @@ static int loongson2_guts_probe(struct p if (of_property_read_string(root, "model", &machine)) of_property_read_string_index(root, "compatible", 0, &machine); of_node_put(root); - if (machine) + if (machine) { soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL); + if (!soc_dev_attr.machine) + return -ENOMEM; + }
svr = loongson2_guts_get_svr(); soc_die = loongson2_soc_die_match(svr, loongson2_soc_die);