Issue:
In function ese_cold_reset_ioctl, kfree is getting call
for nfc_dev->cold_reset.cmd_buf in case of early failure
in the function.
Fix:
Add check NULL check before calling kfree
Change-Id: Ic3e86494f65330ff58a0deb394b3a654f0a395db
Signed-off-by: Om Prakash Singh <quic_omprsing@quicinc.com>