[PATCH] Fix builtin checkout crashing when given an invalid path

[Alex Riesen <raa.lkml@gmail.com>]

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
---

Noticed in t2008, which actually passed, but silently removed
core-files (I saw segfaults in syslog) and did not properly check the
exit code.  The change for the t2008 comes as seperate patch, but it
should be noted that "! command" is *not* how you check for a command
to have failed. It could have crashed.

 builtin-checkout.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/builtin-checkout.c b/builtin-checkout.c
index 4a4bb8b..9579ff4 100644
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -545,6 +545,10 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
 	if (argc) {
 		const char **pathspec = get_pathspec(prefix, argv);
+
+		if (!pathspec)
+			die("invalid path specification");
+
 		/* Checkout paths */
 		if (opts.new_branch || opts.force || opts.merge) {
 			if (argc == 1) {
-- 
1.5.4.3.253.g9f1d5