tree 079446ef98073b111c8901603177fe8b7691c9d0
parent 345ebae7d0586d2f945b622f67f4027515ec4d40
author Arnd Bergmann <arnd@arndb.de> 1500292800 +0200
committer Martin K. Petersen <martin.petersen@oracle.com> 1502129042 -0400

scsi: fusion: fix string overflow warning

gcc points out a theorerical string overflow:

drivers/message/fusion/mptbase.c: In function 'mpt_detach':
drivers/message/fusion/mptbase.c:2103:17: error: '%s' directive writing up to 31 bytes into a region of size 28 [-Werror=format-overflow=]
sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name);
               ^~~~~
drivers/message/fusion/mptbase.c:2103:2: note: 'sprintf' output between 13 and 44 bytes into a destination of size 32

We can simply double the size of the local buffer here to be on the
safe side, and using snprintf() instead of sprintf() protects us
if ioc->name was not terminated properly.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>