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authorArnd Bergmann <arnd@arndb.de>2017-09-14 01:28:26 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-14 03:53:15 +0200
commitd0dbf771309fecd73f4ac1566c1400cb12807ee2 (patch)
tree659dd245ede2fe0668bff75bd05e6d1683872120 /fs/proc/task_mmu.c
parentfscache: fix fscache_objlist_show format processing (diff)
downloadlinux-d0dbf771309fecd73f4ac1566c1400cb12807ee2.tar.xz
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IB/mlx4: fix sprintf format warning
gcc-7 points out that a negative port_num value would overflow the string buffer: drivers/infiniband/hw/mlx4/sysfs.c: In function 'mlx4_ib_device_register_sysfs': drivers/infiniband/hw/mlx4/sysfs.c:251:16: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=] drivers/infiniband/hw/mlx4/sysfs.c:251:2: note: 'sprintf' output between 2 and 11 bytes into a destination of size 10 drivers/infiniband/hw/mlx4/sysfs.c:303:17: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=] drivers/infiniband/hw/mlx4/sysfs.c:303:3: note: 'sprintf' output between 2 and 11 bytes into a destination of size 10 While we should be able to assume that port_num is positive here, making the buffer one byte longer has no downsides and avoids the warning. Fixes: c1e7e466120b ("IB/mlx4: Add iov directory in sysfs under the ib device") Link: http://lkml.kernel.org/r/20170714120720.906842-23-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/task_mmu.c')
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