scsi: fnic: fix format string overflow warning
authorArnd Bergmann <arnd@arndb.de>
Fri, 14 Jul 2017 12:06:58 +0000 (14:06 +0200)
committerMartin K. Petersen <martin.petersen@oracle.com>
Mon, 7 Aug 2017 18:04:01 +0000 (14:04 -0400)
commit514e59c1195f2634dab025d952242f5e69e052c7
tree9d19d825219e5788195ac1b37033ba664bd296be
parent0606ffe26d6d7478fb5957cbc8b9cbbf14a7c68c
scsi: fnic: fix format string overflow warning

The MSI interrupt name can require 11 bytes in addition to the device name,
for a total of 23 bytes:

drivers/scsi/fnic/fnic_isr.c: In function 'fnic_request_intr':
drivers/scsi/fnic/fnic_isr.c:192:4: error: '-fcs-rq' directive writing 7 bytes into a region of size between 5 and 16 [-Werror=format-overflow=]
    "%.11s-fcs-rq", fnic->name);
drivers/scsi/fnic/fnic_isr.c:206:3: note: 'sprintf' output between 12 and 23 bytes into a destination of size 16
   sprintf(fnic->msix[FNIC_MSIX_ERR_NOTIFY].devname,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    "%.11s-err-notify", fnic->name);

This extends the buffer to fit any possible value.

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