[Skiboot] [PATCH v2] Fix FTBFS with -Werror=format-overflow

[Frédéric Bonnard]

i2c.c fails to compile with gcc7 and -Werror=format-overflow used in
Debian Unstable and Ubuntu 18.04 :

i2c.c: In function ‘i2c_init’:
i2c.c:211:15: error: ‘%s’ directive writing up to 255 bytes into a
region of size 236 [-Werror=format-overflow=]

dpath is supposed to store an entire path.

Signed-off-by: Frédéric Bonnard <frediz at linux.vnet.ibm.com>
---
 external/opal-prd/i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/opal-prd/i2c.c b/external/opal-prd/i2c.c
index ba4b3c85..0c9947c1 100644
--- a/external/opal-prd/i2c.c
+++ b/external/opal-prd/i2c.c
@@ -211,7 +211,7 @@ void i2c_init(void)
 #define SYSFS	"/sys"	/* XXX Find it ? */
 	DIR *devsdir;
 	struct dirent *devent;
-	char dpath[NAME_MAX];
+	char dpath[PATH_MAX];
 	char busname[256];
 	char *s;
 	FILE *f;
-- 
2.11.0