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| author | Arnd Bergmann <arnd@arndb.de> | 2017-09-13 16:28:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-13 18:53:15 -0700 |
| commit | d0dbf771309fecd73f4ac1566c1400cb12807ee2 (patch) | |
| tree | 659dd245ede2fe0668bff75bd05e6d1683872120 /lib/string_helpers.c | |
| parent | ebfddb3d447f5267c76680ea4d242e6f9bcafa87 (diff) | |
| download | linux-d0dbf771309fecd73f4ac1566c1400cb12807ee2.tar.bz2 | |
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 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions