coverity: dont dereference before null check

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

coverity: dont dereference before null check
5d9598d7 · Serge Hallyn · a09295f8 · 5d9598d7
Commit 5d9598d7 authored Aug 20, 2013 by Serge Hallyn
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bdev.c src/lxc/bdev.c +2 -1

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--- a/src/lxc/bdev.c
+++ b/src/lxc/bdev.c
@@ -243,11 +243,12 @@ static int detect_fs(struct bdev *bdev, char *type, int len)
 	pid_t pid;
 	FILE *f;
 	char *sp1, *sp2, *sp3, *line = NULL;
-	char *srcdev = bdev->src;
+	char *srcdev;

 	if (!bdev || !bdev->src || !bdev->dest)
 		return -1;

+	srcdev = bdev->src;
 	if (strcmp(bdev->type, "loop") == 0)
 		srcdev = bdev->src + 5;