| Message ID | 20240929012503.18636-1-hanchunchao@inspur.com |
|---|---|
| State | New |
| Headers | show |
| Series | soc: aspeed: Add check devm_kasprintf() returned value | expand |
diff --git a/drivers/soc/aspeed/aspeed-lpc-snoop.c b/drivers/soc/aspeed/aspeed-lpc-snoop.c index 888b5840c015..68317b2e44b5 100644 --- a/drivers/soc/aspeed/aspeed-lpc-snoop.c +++ b/drivers/soc/aspeed/aspeed-lpc-snoop.c @@ -200,6 +200,9 @@ static int aspeed_lpc_enable_snoop(struct aspeed_lpc_snoop *lpc_snoop, lpc_snoop->chan[channel].miscdev.minor = MISC_DYNAMIC_MINOR; lpc_snoop->chan[channel].miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "%s%d", DEVICE_NAME, channel); + if (!lpc_snoop->chan[channel].miscdev.name) + return -ENOMEM; + lpc_snoop->chan[channel].miscdev.fops = &snoop_fops; lpc_snoop->chan[channel].miscdev.parent = dev; rc = misc_register(&lpc_snoop->chan[channel].miscdev);
devm_kasprintf() can return a NULL pointer on failure in aspeed_lpc_enable_snoop() but this returned value is not checked. Fixes: 3772e5da4454 ("drivers/misc: Aspeed LPC snoop output using misc chardev") Signed-off-by: Charles Han <hanchunchao@inspur.com> --- drivers/soc/aspeed/aspeed-lpc-snoop.c | 3 +++ 1 file changed, 3 insertions(+)