PCI: mt7621: Fix string truncation in mt7621_pcie_parse_port()

The following warning appears when driver is compiled with W=1.

CC      drivers/pci/controller/pcie-mt7621.o
drivers/pci/controller/pcie-mt7621.c: In function ‘mt7621_pcie_probe’:
drivers/pci/controller/pcie-mt7621.c:228:49: error: ‘snprintf’ output may
be truncated before the last format character [-Werror=format-truncation=]
228 |         snprintf(name, sizeof(name), "pcie-phy%d", slot);
    |                                                 ^
drivers/pci/controller/pcie-mt7621.c:228:9: note: ‘snprintf’ output between
10 and 11 bytes into a destination of size 10
228 |         snprintf(name, sizeof(name), "pcie-phy%d", slot);
    |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Clean this up increasing destination buffer one byte.

[kwilczynski: commit log]
Closes: https://lore.kernel.org/linux-pci/20240110212302.GA2123146@bhelgaas/T/#t
Link: https://lore.kernel.org/linux-pci/20240111082704.2259450-1-sergio.paracuellos@gmail.com
Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

diff --git a/drivers/pci/controller/pcie-mt7621.c b/drivers/pci/controller/pcie-mt7621.c
index 79e225edb42a014fde25de8ca6f340f528ef1e10..d97b956e6e570ffb4558ffd4fc1c3583f4848b4b 100644 (file)
--- a/drivers/pci/controller/pcie-mt7621.c
+++ b/drivers/pci/controller/pcie-mt7621.c
@@ -202,7 +202,7 @@ static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie,
        struct mt7621_pcie_port *port;
        struct device *dev = pcie->dev;
        struct platform_device *pdev = to_platform_device(dev);
-       char name[10];
+       char name[11];
        int err;
 
        port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);