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-rw-r--r--Documentation/laptops/hpfall.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/laptops/hpfall.c b/Documentation/laptops/hpfall.c
index a4a8fc5d05d4..b85dbbac0499 100644
--- a/Documentation/laptops/hpfall.c
+++ b/Documentation/laptops/hpfall.c
@@ -29,7 +29,7 @@ int set_unload_heads_path(char *device)
return -EINVAL;
strncpy(devname, device + 5, sizeof(devname));
- snprintf(unload_heads_path, sizeof(unload_heads_path),
+ snprintf(unload_heads_path, sizeof(unload_heads_path) - 1,
"/sys/block/%s/device/unload_heads", devname);
return 0;
}