wcnss: Prevent access to WCNSS driver after a failure

Once the WCNSS driver trigger fails, the WCNSS platform driver main
environment is set to NULL. Any further access to WCNSS platform driver
should be prevented after this.

Change-Id: I6d391a347a144c31b70db0fd74904e5d1e020692
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
1 file changed