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PNP: ACPI: Fix string truncation warning

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LKP reports below warning when building for RISC-V.

drivers/pnp/pnpacpi/core.c:253:17:
warning: 'strncpy' specified bound 50 equals destination
size [-Wstringop-truncation]

This appears to be a valid issue since the destination string may not be
null-terminated.

To fix this, append the NUL explicitly after the strncpy().

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307241942.Rff2Nri5-lkp@intel.com/
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sunil V L 2023-07-25 10:59:25 +05:30 committed by Rafael J. Wysocki
parent 2ccdd1b13c
commit 99c31bff18
1 changed files with 3 additions and 0 deletions
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3
drivers/pnp/pnpacpi/core.c
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@ -254,6 +254,9 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
else
strncpy(dev->name, acpi_device_bid(device), sizeof(dev->name));
/* Handle possible string truncation */
dev->name[sizeof(dev->name) - 1] = '\0';
if (dev->active)
pnpacpi_parse_allocated_resource(dev);