habanalabs: remove redundant memset

From reviewing the code, the line
  memset(kdata, 0, usize);
is not needed because kdata is either zeroed by
  kdata = kzalloc(asize, GFP_KERNEL);
when allocated at runtime or by
  char stack_kdata[128] = {0};
at compile time.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

diff --git a/drivers/accel/habanalabs/common/habanalabs_ioctl.c b/drivers/accel/habanalabs/common/habanalabs_ioctl.c
index 619d56c40b3038ed61bdcc5648c7125d67b72791..949d3852716030518b1cfbf250ada0c9d68eee0d 100644 (file)
--- a/drivers/accel/habanalabs/common/habanalabs_ioctl.c
+++ b/drivers/accel/habanalabs/common/habanalabs_ioctl.c
@@ -1123,8 +1123,6 @@ static long _hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg,
                        retcode = -EFAULT;
                        goto out_err;
                }
-       } else if (cmd & IOC_OUT) {
-               memset(kdata, 0, usize);
        }
 
        retcode = func(hpriv, kdata);