CHECK: Comparison to NULL could be written "!data"
#75: FILE: drivers/mailbox/pcc.c:470:
+	if (data == NULL)

total: 0 errors, 0 warnings, 1 checks, 77 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 99758a3a8327 ("mailbox/pcc: use mailbox-api level rx_alloc callback") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 0 warnings, 1 checks, 77 lines checked