1 files changed, 8 insertions, 5 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 72fb8cebd4..813372a6c7 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -48,6 +48,7 @@
 #endif
 #ifdef __linux__
 #include <sys/ioctl.h>
+#include <sys/param.h>
 #include <linux/cdrom.h>
 #include <linux/fd.h>
 #endif
@@ -868,8 +869,13 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
 
     s->type = FTYPE_FILE;
 #if defined(__linux__)
-    if (strstart(filename, "/dev/sg", NULL)) {
-        bs->sg = 1;
+    {
+        char resolved_path[ MAXPATHLEN ], *temp;
+
+        temp = realpath(filename, resolved_path);
+        if (temp && strstart(temp, "/dev/sg", NULL)) {
+            bs->sg = 1;
+        }
     }
 #endif
 
@@ -1154,9 +1160,6 @@ static int cdrom_probe_device(const char *filename)
     int fd, ret;
     int prio = 0;
 
-    if (strstart(filename, "/dev/cd", NULL))
-        prio = 50;
-
     fd = open(filename, O_RDONLY | O_NONBLOCK);
     if (fd < 0) {
         goto out;