[PATCH xserver] xfree86: up the path name size to 512 in xf86MatchDriverFromFiles

[Peter Hutterer]

./hw/xfree86/common/xf86pciBus.c: In function ‘xf86MatchDriverFromFiles’:
./hw/xfree86/common/xf86pciBus.c:1330:52: warning: ‘snprintf’ output may be
truncated before the last format character [-Wformat-truncation=]
             snprintf(path_name, sizeof(path_name), "%s/%s", ^~~~~~~
./hw/xfree86/common/xf86pciBus.c:1330:13: note: ‘snprintf’ output between 2

dirent->d_name is 256, so sprintf("%s/%s") into a 256 buffer gives us:

and 257 bytes into a destination of size 256

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 hw/xfree86/common/xf86pciBus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/xfree86/common/xf86pciBus.c b/hw/xfree86/common/xf86pciBus.c
index 0d0a76bc8..012ca08d2 100644
--- a/hw/xfree86/common/xf86pciBus.c
+++ b/hw/xfree86/common/xf86pciBus.c
@@ -1303,7 +1303,7 @@ xf86MatchDriverFromFiles(uint16_t match_vendor, uint16_t match_chip,
     char *line = NULL, *tmpMatch;
     size_t len;
     ssize_t read;
-    char path_name[256], vendor_str[5], chip_str[5];
+    char path_name[512], vendor_str[5], chip_str[5];
     uint16_t vendor, chip;
     int j;
 
-- 
2.12.2