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Arnd Bergmann authored
gcc-8 points out that the fix-byte buffer might be too small if desc->mode is a three-digit number: drivers/usb/typec/class.c: In function 'typec_register_altmode': drivers/usb/typec/class.c:502:32: error: '%d' directive writing between 1 and 3 bytes into a region of size 2 [-Werror=format-overflow=] sprintf(alt->group_name, "mode%d", desc->mode); ^~ drivers/usb/typec/class.c:502:27: note: directive argument in the range [0, 255] sprintf(alt->group_name, "mode%d", desc->mode); ^~~~~~~~ drivers/usb/typec/class.c:502:2: note: 'sprintf' output between 6 and 8 bytes into a destination of size 6 sprintf(alt->group_name, "mode%d", desc->mode); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I assume this cannot happen in practice, but we can simply make the string long enough to avoid the warning. This uses the two padding bytes that already exist after the string. Fixes: 4ab8c18d ("usb: typec: Register a device for every mode") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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