Hi Martin,
Martin Kaiser <martin@xxxxxxxxx> says:
Use kmalloc to allocate the efuse buffer in ReadAdapterInfo8188EU and
free it on exit. This is better than using a 512 byte array on the stack.
It's ok to drop the __aligned(4) qualifier. kmalloc aligns to
ARCH_KMALLOC_MINALIGN, this is at least 8 bytes.
Suggested-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Suggested-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Signed-off-by: Martin Kaiser <martin@xxxxxxxxx>
---
drivers/staging/r8188eu/hal/usb_halinit.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 8902dda7b8d8..421fe7c40390 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -926,7 +926,7 @@ void ReadAdapterInfo8188EU(struct adapter *Adapter)
{
struct eeprom_priv *eeprom = &Adapter->eeprompriv;
struct led_priv *ledpriv = &Adapter->ledpriv;
- u8 efuse_buf[EFUSE_MAP_LEN_88E] __aligned(4);
+ u8 *efuse_buf;
u8 eeValue;
int res;
@@ -937,7 +937,10 @@ void ReadAdapterInfo8188EU(struct adapter *Adapter)
eeprom->bautoload_fail_flag = !(eeValue & EEPROM_EN);
- memset(efuse_buf, 0xFF, sizeof(efuse_buf));
+ efuse_buf = kmalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
+ if (!efuse_buf)
+ return;
I think, it worth returning an error to caller. Functions right after
the allocation do initialization, so leaving fields as-is seems to be
dangerous
Thanks,
--Pavel Skripkin
