thermal: sysfs: Use sysfs_emit_at() in trans_table_show()

Replace snprintf() with sysfs_emit_at() in trans_table_show().
sysfs_emit_at() is preferred for formatting sysfs output because it
provides safer bounds checking.

Convert multiple PAGE_SIZE length checks to check the number of bytes
actually copied by sysfs_emit_at(), thus avoiding manual buffer size
accounting.

Consistently return -EFBIG when the transition table output exceeds the
sysfs buffer, including the header row.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260719132251.31936-3-thorsten.blum@linux.dev
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

0 files changed, 0 insertions, 0 deletions