ADSPRPC: Initialize dlerror string

Currently dlerrstr is uninitialized. When DSP fails to update dlerrstr
string due to any reason, an uninitialized dlerrstr is getting printed
which will access beyond 255 bytes. By initializing this string to NULL,
we will make sure that we do not access beyond the size allocated even
in case of any DSP related failures.

CRs-Fixed: 2653730

Change-Id: I2f91fd2c80933f89042366dbe8aceef10b0dfe8e
1 file changed
tree: c22966bb24e7b6cd6e23d30befc2de8210437897
  1. inc/
  2. src/
  3. LICENSE
  4. Makefile
  5. METADATA
  6. MODULE_LICENSE_BSD