Add a protection in misc bsec ops for request with null size.
For example OP-TEE error occurs when get_eth_nb() return 0 in setup_mac_address() for unknown part number because U-Boot read 0 OTPs.
Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
arch/arm/mach-stm32mp/bsec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-stm32mp/bsec.c b/arch/arm/mach-stm32mp/bsec.c index f5f4b20d4776..0dc1e5c3fdc4 100644 --- a/arch/arm/mach-stm32mp/bsec.c +++ b/arch/arm/mach-stm32mp/bsec.c @@ -622,7 +622,7 @@ static int stm32mp_bsec_read(struct udevice *dev, int offset, shadow = false; }
- if ((offs % 4) || (size % 4)) + if ((offs % 4) || (size % 4) || !size) return -EINVAL;
if (IS_ENABLED(CONFIG_OPTEE) && priv->tee) { @@ -678,7 +678,7 @@ static int stm32mp_bsec_write(struct udevice *dev, int offset, shadow = false; }
- if ((offs % 4) || (size % 4)) + if ((offs % 4) || (size % 4) || !size) return -EINVAL;
if (IS_ENABLED(CONFIG_OPTEE) && priv->tee) {