firmware: ti_sci: fix strncat length check
authorArnd Bergmann <arnd@arndb.de>
Wed, 11 Jan 2017 11:53:05 +0000 (12:53 +0100)
committerArnd Bergmann <arnd@arndb.de>
Fri, 19 May 2017 08:31:36 +0000 (10:31 +0200)
commit76cefef8e838304a71725a0b5007c375619d78fb
tree946440e78ef470038b4fbddf2a8649fe91eff47f
parent0527873b29b077fc8e656acd63e1866b429fef55
firmware: ti_sci: fix strncat length check

gcc-7 notices that the length we pass to strncat is wrong:

drivers/firmware/ti_sci.c: In function 'ti_sci_probe':
drivers/firmware/ti_sci.c:204:32: error: specified bound 50 equals the size of the destination [-Werror=stringop-overflow=]

Instead of the total length, we must pass the length of the
remaining space here.

Fixes: aa276781a64a ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol")
Cc: stable@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
drivers/firmware/ti_sci.c