Documentation: Fix size parameter for snprintf
cppcheck reports this error:
Documentation/laptops/hpfall.c:33]: (error)
Dangerous usage of 'devname' (strncpy doesn't always 0-terminate it)
The terminating '\0' is needed for the global char array unload_heads_path,
so never write the last array entry (which is initially '\0').
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/laptops/hpfall.c b/Documentation/laptops/hpfall.c
index a4a8fc5..b85dbba 100644
--- a/Documentation/laptops/hpfall.c
+++ b/Documentation/laptops/hpfall.c
@@ -29,7 +29,7 @@
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;
}